我们提供一站式服务为您申请Astro和Broadband。不必开车，排队和在销售柜台等候。 我们可以帮助您处理您的申请。

我们不收取额外费用。 无需提供信用卡信息。 费用与您在销售柜台申请的费用相同。

首先，您可以在线申请，我们将在工作时间内立即与您联系。 通过WhatsApp/电子邮件/传真发送您的身份证-IC（马来西亚公民）/ 护照（外国人）的复印件给我们。 收到所有资料后，我们将立即处理您的申请。

一旦收到您的完整资料，我们将在工作时间内立即处理您的申请。一旦您的申请获得批准，服务提供商的承包商将与您联系以进行安装预约。

ASTRO 和宽频收费同时在一张账单，享受更大的节省和无忧的账单支付。 在24个月的合约期内，您可以每月以折扣价享受 Astro 和宽频。

Astro 提供多种电视配套，包括娱乐、体育、电影和儿童配套。您可以选择符合您观看需求的配套，并在适用情况下添加额外的串流应用服务。

可以，您可以只订阅 Astro 电视配套而无需绑定宽频。不过，将 Astro 电视与光纤宽频绑定可享有更好的每月优惠，并且只需支付一张综合账单，更加方便。

对于小型家庭以及轻度上网和串流使用者，100Mbps 通常已足够。较大家庭、游戏玩家或重度串流用户则可选择 500Mbps 或 1Gbps 配套，以获得更流畅的多设备使用体验。

大多数 Astro 电视和光纤宽频配套都附带 24 个月合约期。如在合约期满前取消服务，可能会产生提前终止费用。

可以，您可在符合资格及覆盖范围的情况下随时升级电视配套或宽频速度。根据升级情况，可能需要重新计算合约期限。

您的每月账单将由 Astro 直接发出。您可通过电子邮件接收账单，或通过 Astro 账户在线查看。绑定配套用户将收到电视与宽频服务的综合账单。

付款方式包括网上银行、自动扣款、信用卡或 Astro 提供的其他认可付款渠道。我们的团队将在申请过程中为您提供协助。

如果您遇到任何服务中断问题，可联系 Astro 客户服务寻求技术协助。大多数情况下可远程解决，如有需要将安排技术人员上门处理。

可以，迁移服务需视新地址是否在服务覆盖范围内而定。根据您的配套，可能会产生迁移费用及合约调整。

不需要，提交申请时无需提供信用卡资料。服务获批后，付款安排将由 Astro 直接处理。

部分 Astro 电视配套可根据当前促销及服务情况添加串流服务等附加项目。可能需支付额外月费。

是的，光纤安装时通常会提供 WiFi 路由器。路由器型号可能会根据所选宽频速度配套而有所不同。

可以，我们会在处理您的申请前确认您地址的服务覆盖范围，以确保该地区可安装宽频服务。

马来西亚公民需提供 MyKad 复印件。外籍人士则需在提交宽频申请时提供护照复印件。

申请获批后，服务提供商通常会在 2 至 7 个工作日内联系您安排宽频安装预约。

大多数 Astro 宽频配套附带 24 个月合约期，从安装日期开始计算。如您搬迁，可能需要在新地址重新签订 24 个月合约。

可以，您可在新地址具备服务覆盖的情况下迁移宽频服务。合约期限可能会从新安装日期起重新计算 24 个月。

可以，您可申请在家中调整宽频设备位置。若属于非标准安装，可能会产生额外费用，并需在评估后直接支付给安装人员。

可以，您可转用 Astro 宽频。为避免服务中断，建议在终止现有宽频合约前先开通新的宽频服务。

标准安装在促销期间可能免费，但非标准安装（如设备迁移或复杂布线）可能会产生额外费用，并需直接支付给安装人员。

We are thrilled to announce that as part of your subscription, you are able to enjoy exclusive coverage of live matches in HD on Astro channels, On Demand and Astro GO! This means that you'll have access to all the latest games, highlights, and analysis, right at your fingertips.

With this new addition, you'll be able to follow your favourite teams and players closer than ever before, keeping you up-to-date with all the action on and off the field. Whether you're a die-hard fan or a casual spectator, this new content is sure to provide you with endless hours of entertainment.

To ensure that we continue offering the best choice in sports content, our Sports Pack will now be priced at RM104.99/month (for 12 months contract) or RM99.99/month (for 24 months contract) and Premium Pack 1 will now be priced at RM139.99/month (for 12 months contract) or RM129.99/month (for 24 months contract) starting 9 February 2023, and this applies to all new customers. 

Note that there will no changes for existing Sports Pack & Premium 1 customers in 24 or 12 month contract being renewed before 1st June 2023.

We appreciate your continued support and can't wait for you to experience this exciting new addition to your Sports Pack subscription.

Please refer to the table below for the full revised pricing for the following packs:

We hope you continue to enjoy your Astro experience with us.
 

Astro GO+ is a service add-on that: 

• Enables the simultaneous viewing of Astro GO for up to 4 users/devices. 
• Increases the cloud recording storage from 200 hours up to 1500 hours. 

Yes, you will be able to access Disney+ Hotstar even if you remain on your existing Movies/Starter Plus/Value Plus Packs.

My Astro is available on web browser and app. The app can be downloaded for free from the Google Play Store, Apple App Store or Huawei App Gallery.

For Ultra and/or Ulti box users, My Astro app is now added to the Top Menu so you can easily access it to manage or update your account. You may find it in the Top Menu, located next to Settings. Please refer to the image below to see what it looks like:

The PVR comes with a 12 months warranty from the date of activation.

Once your Plug & Play Box has been activated, a courier service will reach out to you within TWO (2) weeks for a time for them to pick up the old Astro box and SIM card/Smartcard.

1. Ensure that all cables have been plugged out of the old Astro box. To remove the white satellite cable from your old Astro box, simply hold the cable, twist, and gently pull.
2. Set aside these items to be ready for our delivery partner to pick up from you:

• Old Astro Box
• Old Astro Smartcard/SIM Card (leave this in your Astro Box)

3. When a courier arrives at your residence, do confirm that they are collecting items on behalf of Astro.
4. Allow the courier to check the serial number of the Astro box.
5. Hand them all the items for return, and you're done!

STEP 1  

Press "HOME" button on your remote control.

STEP 2

Navigate to Update Satellite Frequency and press “OK”.

‍

STEP 3    

Choose Reprogramming and press “OK”.

STEP 4    

Select Yes, continue and press "OK" to proceed with the update.      

Otherwise, select No, go back to cancel.

STEP 5  

Satellite Frequency Update progress screen will be displayed.

‍

STEP 6    

The test result will be displayed once completed.    

Press "OK" to go back to  channel.

A deposit of RM500 is payable for new subscribers (non-Malaysians). The fee will be refunded when service is terminated.

No deposit is required for all existing Astro customers and new subscribers (Malaysians).

Please make sure that:

• You are inserting the correct account holder's information while linking, ie: I/C number, passport number, Astro account number or Smart card number.
• You are linking to an Astro account (NJOI customers will not be able to log into Astro GO).
• Your Astro account is not currently linked to any other Astro ID. If your Astro account is currently linked to another Astro ID, you will see a red notice.

To find out which Astro ID is currently linked to your account, you may submit a feedback form. Kindly select feedback type "I have an enquiry/issue with Apps

If you sign up Astro & Broadband with standard Ultra & Ulti box (DBB), all channels are available.  

However, there are channels that will not be available with Ultra/Ulti Plug & Play Box which are NHK World (398).

Step 1:
Type ASTRO<space>BAL<space>10-Digit Astro Account No. 
Example: ASTRO BAL 08XXXXXXXX

*Standard telco charges and Terms and Conditions apply

Step 2:
Send SMS to 66688

Yes, Astro is bounded by the PDPA act. All information received will be used in accordance with our Privacy Notice.

All streaming apps willbe made available on the Ultra Box first, followed by the Ulti Box. If youwould like to upgrade to the Ultra Box, please visit product.astro.com.my/tv or reach us via WhatsApp by typing “Hi” at 03-9543 3838 forassistance.

If you have forgotten your username or password, you may follow the steps below:

Step 1. Go to netflix.com

Step 2: Click on Sign In

Step 3: Click on "Need Help

The service tax rate for Astro Pay TV will be increased from 6% to 8%. The service tax for Astro Fibre, which falls under the category of telecommunication service, will remain at 6%.

Starting 12 December 2023, Multiroom Smart TV app customers can enjoy two 4K Ultra HD (4K UHD) channels, namely CH549 Love Nature and CH805 Astro SuperSport. “Love Nature” is available to all customers regardless of their subscribed TV Pack. It celebrates the complexity of life on earth, presenting nature stories in stunning detail and colours.


Additionally, “Astro SuperSport” is only available to customers on the Sports, Sports Plus, Premium 1, Premium 2, Premium 4, Platinum Lite and Platinum Packs. This channel showcases a variety of sporting events, selected to appeal to the Malaysian viewing audience.

Astro is an official distributor of Disney+ Hotstar, the dedicated streaming home for global, and Malaysian hits. Astro customers can now subscribe to Disney+ Hotstar through the new, bigger and more diverse Packs, i.e.: Movies, Premium 1, Premium 3 or Platinum Pack. The streaming service brings together blockbuster movies from Hollywood to Hallyu and award-winning content from Disney, Marvel, Star Wars, Pixar, National Geographic, FX, 20th Centuary Studios and more including exclusive premieres from leading Malaysian studios. Take your family entertainment to the next level with Disney+ Originals like I am Groot, Prey, Baymax, Obi-Wan Kenobi, She-Hulk, IN THE SOOP: Friendcation and more - with the convenience of one monthly bill for all your entertainment needs. 

Movies Pack, Premium 1, Premium 3 and Platinum customers as well as customers on the Starter Plus Pack, Value Plus Pack, and Disney+ Hotstar (3-months Pass) can enjoy Disney+ Hotstar on Astro. 

Customers can subscribe to Disney+ Hotstar via astro.com.my/Disney, as well as via authorised retailers and dealers. 

You will be able to check your balance, switch to e-billing, request for payment barcode and request for reconnect at standard telco rate.

Yes, a third party is allowed to make the advance payment on your behalf. In the case of refund, the amount will be returned to the owner of the third-party account (source of payment).

Starting 21 June 2022, all new digital sign-ups for TV packs on astro.com.my will now include access to the Astro GO app within an hour upon checkout of your first month subscription fees (excluding tax). Install the app on your smartphones, tablets or computers and you can start streaming even before your Astro box arrives!

If you are subscribed to Netflix via a bundle, Netflix comes by default as part of your entitlement.

If you are subscribed to Netflix as an a-la carte, the cancellation of Netflix can only be done via Netflix's Website, etc). This change will reflect in your next bill. From mid-December 2021 you may also cancel Netflix add-on through Astro Call Center.

For more information about the Astro Fibre App, you may click here for a detailed user guide.

Yes. You are entitled to separate Netflix accounts for each main Astro subscription e.g. If you have subscribed to Entertainment Plus, Platinum Pack, etc separately. Therefore, if you have more than one main Astro subscription with Netflix, you may choose to create multiple email addresses to activate each respective Netflix subscription. Please follow the steps provided to you via email/SMS in order to activate your Netflix subscriptions on the website.

Yes, the Multiroom (Smart TV) will utilise one (1) of your Astro GO concurrency.

Customers subscribing to Multiroom (Smart TV) can enjoy access up to 4 concurrency (watch 4 screens at the same time) which is shared across one Smart TV device and 3 mobile/laptop/tablet device(s) as Astro GO+ is complimentary with a Multiroom (Smart TV) subscription.

We are sorry you are thinking of leaving us.

If you wish to cancel your Astro subscription, kindly do take note of the information below if your account is still within contract period,

• Termination Request must be completed by the account holder.
• You need to settle the outstanding balance and penalty (if any).
• All Termination Request require a 30-day notice period.

By default, the band steering featured is disabled. Follow these steps to enable it.

Note: Band Steering is called Dual-band Combination in the router web interface.

1. Please connect your computer or laptop to your Astro Fibre router using LAN cable. Your LAN cable must be connected from the yellow port of Astro Fibre router (Any available port).
2. Once connected, open any web browser such as Google Chrome, Internet Explorer, Mozilla Firefox and etc.
3. On the address bar, type http://192.168.100.254 and below page will appear.

Login using your username and password if you have changed the router login setting. Otherwise, your default router login is as per below.

Username: user
Password: user

 

4. Once you have successfully logged in, the router's web-based setup page will appear.

5. At the top of the page, click Wi-Fi to configure the WiFi parameters.

6. Click on Dual-band Combination button to enable the Band Steering.

7. A pop-up message will appear showing "The device network may be disconnected when dual-band combination is enabled". Click "OK" to proceed.

8. Set the Wi-Fi name and Wi-Fi password based on customer's preferences. Then click "Apply" for the changes to take place.

Please reconnect to the new Wi-Fi name with the new password once completed.

1. Router Positioning
   • Most people underestimate the importance of picking a good spot for a Wi-Fi router. Even a small shift in positioning could end up being the difference between day and night.
   • High vs. Low
     • Put the router as high up as possible to extend the broadcasting range of the radio waves. This also helps clear the router of possible interferences.
   • Concrete & Metals
     • ​Make sure your router isn't blocked by any other objects, especially devices that are electronic. Also, avoid placing your router in your basement as this area is usually enclosed by a lot of concrete, which can be almost impossible for WiFi signals to penetrate.
   • Distance to Router
     • ​ The further away from your router you  get, the weaker the Wi-Fi signal. Therefore, the best option is to place your router as close to your devices as possible, but this is only practical if you have one main area where you tend to use your devices.
     • Otherwise, you should place your  router near the center of your home. After all, WiFi broadcasts in 360 degrees, so it doesn't make sense to put it at one end of the house.
2. Wireless Interference & Noise
   • You've probably never  noticed but there are wireless signals all around you wherever you go and  they're passing through you all the time. From where? Electronic devices,  WiFi routers, satellites, cell towers, and more.
   • Although WiFi is  supposed to be on a different frequency than most of these devices, the  amount of radio noise can still cause interference. Some common causes of interference include:
     1. Microwaves
     2. Bluetooth Devices
     3. Cordless Phone
3. Surrounding Wi-Fi signals
   • A truth of the modern world is that every  household has their own WiFi network, which can cause issues with channel overlap. This can be somewhat problematic in a townhouse, but is especially problematic in housing complexes and apartments where there can be many  routers within close proximity.
   • Which is why it's important that you pick a good channel in your router settings. Modern routers can choose channels  for you automatically, but sometimes it's better to investigate and find the best channel yourself.
4. Usage
   • More likely, however, is that the people  on your network such as friends, roommates, or family members are participating in bandwidth-heavy activities like gaming and streaming Ultrabox/ Netflix.
   • Fortunately, if this is the case, you can prioritize your own network traffic by enabling Quality of Service in your router settings.

For app, you may go to "Manage' > "Support' section and  provide your feedback either through the feedback form or chat with us via WhatsApp at 03-9543 3838.

For web, you may go to "Support' menu and provide your feedback either through the feedback form or chat with us via WhatsApp at 03-9543 3838.

For Ultra and/or Ulti box, you may chat with us via WhatsApp at 03-9543 3838.

Please refer to these FAQs and Terms and Conditions for more information.

For more support and options for your subscription, please WhatsApp us at 03 9543 3838 and type DH Help. Alternatively, you may visit astro.com.my/Disney for more information.

The promotion period of Astro Fibre’s Speed Upgrade Campaign is from 24 November 2023 until 31 May 2024.

Yes, you may cancel your Astro Fibre order before service activation, however, kindly note that there is a cancellation charge of RM212 (inclusive of SST) for any service cancellation done 48 hrs before scheduled appointment.

In general, these two bands can be differentiated with these parameters: Coverage, Channel Interference and Speed.

2.4GHz gives better coverage but lower speeds, while 5GHz provides faster internet but covers a smaller area.

You are entitled for free mesh WiFi devices when you sign up for Astro & Broadband with Maxis fibre 500Mbps or 800Mbps speed only.

Mesh WiFi is not available with Astro & Broadband with Allo. However, you may purchase the Mesh WiFi devices separately to pair along with you Allo broadband.

The Liga Malaysia will be available for all Astro customers starting 3 May 2024 as part of your Astro subscription at no additional cost until further notice.
 

You may proceed with the following troubleshooting steps and it shouldn't take you much longer than 15 min

1. Please standby a computer/laptop to access to the internet and connection must be via LAN cable (connect the LAN cable to the Yellow port at Tplink Router and direct to the computer/laptop).

2. You may open any web browser such as Google Chrome, Internet Explorer, Mozilla Firefox and etc.

3. On the address bar, please go to tplinkwifi.net and to access to below login page. Type the Username and  Password, then click "Login".

The default login of the router is available on the sticker at the back of the router. If you have done a configuration on your  router previously, the password may be different.

For example, below is the login details of the above router:
 

Username: admin

Password: TIMECE24
 

4. Once you have successfully login, the router's web-based setup page will appear. Please follow below steps for the configuration.

5. From the top menu, choose Advanced and click the Wireless tab on the left menu. Then, select Wireless Settings from the sub menu. Below screen will appear for 2.4GHz selection.

i. Please ensure to tick Enable Wireless Radio function.

ii. To change the channel, click the  drop-down arrow for Channel, then select your desired channel.

Choose between 1 to 13 (Suggested  channels : 1,6,11). Then, click "Save" for the changes to take place.

iii. Click Save for the changes to take place. The router will auto reboot and connection will re-establish after few minutes.

iv. Next, select 5GHz to make changes on the wireless channel for 5GHz.

v. Click the drop-down arrow for Channel, then select your desired channel from the selection.

vi. Click Save for the changes to take place. The router will auto reboot and connection will re-establish after few minutes.

1. Unifi netis brand

The following shows an Interface based on Unifi router

1. Launch Web Browser and enter the default's gateway's IP address (192.168.1.1) in the address bar.

1. Enter Username and Password.
   1. Username = tmadmin
   2. Password = Adm@xxxx (xxxx refers to last four digits of MAC address)

1. Choose WLAN -> wlan0 (2.4GHz) Basic Setting. Note down on SSID.

1. Choose WLAN -> wlan1 (5GHz). Compare SSID with previous SSID.

1. If SSID for wlan0 (2.4GHz) and wlan1 (5GHz) are the same. Change wlan1 (5GHz) SSID by adding number 5(i.e. ifuni_5G) to differentiate from 2.4 GHz. Click Apply Changes.

Note: Connection to Wi-Fi may be temporarily loss while the changes is updated.

Slow browsing using LAN cable

Looks like there is something wrong with your service connection.

Please run the Speed Test and attach the picture or screenshot of the  speed test in the Feedback Form below, in order for us to provide further  assistances.

Click here for Speed Test guideline.


Slow browsing using LAN cable

Looks like there is  something wrong with your service connection.

Please run the Speed Test and attach the picture or screenshot of the  speed test in the Feedback Form below, in order for us to provide further assistances.

Click here for Speed Test guideline.

Quick Info
A Speedtest is a service that provides free analysis of Internet access  parameters, such as connection data rate.

Slow browsing using Wi-Fi

1. Router Positioning

Most people  underestimate the importance of picking a good spot for a Wi-Fi router. Even a small shift in positioning could end up being the difference between day  and night.

i) High vs. Low

Put the router as high up as possible to  extend the broadcasting range of the radio waves. This also helps clear the  router of possible interferences.

ii) Concrete &  Metals

Make sure your router isn't blocked by any other objects, especially  devices that are electronic. Also, avoid placing your router in your basement  as this area is usually enclosed by a lot of concrete, which can be almost  impossible for Wi-Fi signals to penetrate.

iii) Distance to  Router

The further away from your router you get, the weaker the Wi-Fi signal. Therefore, the best option is to place your router as close to your  devices as possible, but this is only practical if you have one main area  where you tend to use your devices.

Otherwise, you should place your  router near the center of your home. After all, Wi-Fi broadcasts in 360  degrees, so it doesn't make sense to put it at one end of the house.

2. Wireless Interference & Noise

You've probably never  noticed but there are wireless signals all around you wherever you go and  they're passing through you all the time. From where? Electronic devices,  Wi-Fi routers, satellites, cell towers, and more.

Although Wi-Fi is supposed to be on a different frequency than most of these devices, the amount of radio noise can  still cause interference. Some common causes of interference include:

• Microwaves
• Bluetooth Devices
• Cordless Phone

3. Surrounding Wi-Fi signals

A truth of the modern world is that every household has their own Wi-Fi network, which can cause issues with channel  overlap. This can be somewhat problematic in a townhouse, but is especially  problematic in housing complexes and apartments where there can be many  routers within close proximity.

Which is why it's important that you pick a good channel in your  router settings. Modern routers can choose channels for you automatically, but sometimes it's better to investigate and find the best channel yourself.

4. Usage

More likely, however, is that the people on your network such as friends, roommates, or family members are participating in bandwidth-heavy activities like gaming and streaming Ultra box/ Netflix.

Fortunately, if this is the case, you can prioritize your own network  traffic by enabling Quality of Service in your router settings.

If the problem persists, please run a Ping Test, Traceroute Test and attach the picture or screenshot of both test results in the Feedback Form below, in order for us to provide further assistances.

Please make sure to attach the required  screenshot(s) in ONE file (i.e. Microsoft Word document, PDF, Image file)  before submitting the form.

Quick Info
A Speedtest is a service that provides free analysis of Internet access  parameters, such as connection data rate.
A Ping Test shows how long it takes for packets to reach host.
A Traceroute Test traces the route of packets to destination host from our server.

Information of the PPV CH200 cessation has been announced on CH200 from 1 - 7 October prior to the PPV cessation. Once again, we regret any inconvenience caused.

You have exceeded the maximum number of registered devices allowed. To manage devices on Astro GO, go to Settings > Registered Devices to view / remove devices from the list of registered devices to your account.

If you are still having issues, proceed to submit report via WhatsApp or Feedback Form.
 

STEP 1
On your remote, press the Home button and the Home Page will be displayed on your screen.



STEP 2
Navigate to Profile.



STEP 3
The Profile Selection Screen will be displayed. 



STEP 4
Navigate to Edit Profile.



STEP 5
Choose a profile to edit.




STEP 6
Choose a new Profile Picture and press “OK”.


 

Advance payment can be made via credit/debit card or online banking.

You can make changes to your Netflix plans that are included in your Bundle through My Astro app 

You can change your non Astro-bundled a-la carte Netflix plan at any time by signing into Netflix.com and visiting the Account page, then selecting Change Plan to view and select available plans.  

STEP 1    

On your remote, press the HOME button and the home menu will be displayed on top of your screen.

STEP 2    

Navigate to Settings.

STEP 3    

Navigate to STB Diagnostics and press "OK".

STEP 4    

Select General Diagnostics and press "OK".

STEP 5  

Details information of General Diagnostics screen will be displayed.

STEP 6    

Press down arrow on your remote to get more information.

Service will be resumed after you make payment within 45 days. The monthly subscription fee to be prorated accordingly and a reconnection fee of up to RM20 (exclusive of SST) will be applied upon service resumption. 

If payment is made within 45 days from your bill cycle date, Astro & Broadband services will be resumed within 3 hours of payment received. Your following month's bill will be prorated accordingly.

Find out more about the reconnection fee here.

Step 1: Visit Astro website at https://www.astro.com.my/

Step 2: Click "Login'

Step 3: After login, click the profile icon and select 'Manage Profile'. You may change your account password here.

Please be sure to take your decoder, satellite dish, smartcard, remote control and all other fixtures after dismantling is done by the technician.

We would need you to run few tests in order for us to understand your issue and to assist you in fixing the problem.

This will not take longer than 15 minutes.

1. Please run each of  the test using your laptop or personal desktop by connecting to your Astro Fibre.
2. Please list down the impacted website (Provide us the complete URL i.e. www.astro.com.my).
3. We need you to run below tests and compile the pictures or screenshots of your test results into one file (i.e Microsof Word document, PDF file) and send to our agent in order for us to assist you further:
   • Run the Ping & Traceroute Test - For guidance, please click here for Ping & Traceroute Test guideline. 
   • You may run this by connecting via WiFi or LAN cable. Your test result will appears as per below screen and take a screenshot.

• Run the Speed Test - For guidance, please click here for Speed Test guideline.

We need you to run the Speed Test using both WiFi connection and LAN cable.

4. Once you've gathered all the results, attach in Feedback Form for further assistance.

This Service Tax is imposed on customers of Pay TV broadcasting services by the Government. As such the Service Tax will be passed on to the customers.
 

Refund can only be made by the registered Astro account holders.

However, if you would like to request refunds on behalf of the account holder, you may do so by providing the supporting documents (e.g.: authorization  letter, death certificate, 3rd party NRIC copy).

Yes, if a device is faulty due to the customer's negligence, they will be subjected to a penalty fee for each device:

• WiFi router: RM200

• Fibre modem: RM500

• Mesh WiFi: RM200/unit