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C81

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C81

USB Type C Bluetooth Transmitter for Connecting Bluetooth Headphones to PS5, Switch, PC and Cellphones

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$29.99
FREE shipping and returns
 
Purchases from Avantree.com gets 2-year warranty
  • HASSLE-FREE SET UP - Get wireless Bluetooth audio streaming in no time with the C81. Simply plug it into your device’s USB-C port, set your headphones or speakers to pairing mode, and an automatic connection will be made. No driver or software installation is needed! A converter cable is included if you prefer to use the USB-A port instead.
  • WIDE COMPATIBILITY - The C81 adapter is designed to work with a wide range of devices, and makes it simple for previously unsupported devices to now have Bluetooth capability. Easily transmit audio wirelessly from your USB-C ported PS5, Switch, or PC/Laptop to your Bluetooth headphones or speaker. In addition, a converter cable is included to enable devices with just a USB-A port to have the same functionality.
  • HIGH-QUALITY AUDIO - The C81 supports seamless, wireless voice chat via an included microphone to plug into your controller. In addition to chatting during the game, you can also listen to background music simultaneously, and do both in stereo sound. No limits to audio quality here.
  • ELIMINATE AUDIO DELAYS - Having your audio out-of-sync with your game or video is really frustrating. You can eliminate the issue with the C81, which is aptX Low Latency certified. Lag is reduced to less than 40ms, 5x shorter than standard Bluetooth and virtually unnoticeable. Now you can enjoy gaming or watching a movie with real-time audio synchronization.
  • EXTENDED RANGE - The Avantree C81 uses Bluetooth v5.0, ensuring stable & reliable connectivity up to 100 ft (30 m) away. Need to step away from your screen? No problem. Walk around without the audio connection breaking up or dropping. Actual range may be affected by any physical obstructions.

The Avantree C81 adds Bluetooth audio functionality onto any device that outputs audio through USB Type C ports, making it a perfect adapter for connecting Bluetooth headset & speaker to PS5, Switch, Windows, and Mac. It’ll also work with Type A USB devices through a converter

Bluetooth enable

Plug & play

No lip-sync delay

Extended range

Comparison chart of Avantree C81 to other similar Bluetooth USB transmitter adapters

Bluetooth Enable Your Device

Avantree C81 Bluetooth 5.0 USB Type C Audio Transmitter for Connecting Bluetooth headphones for speakers to Windows PC, Mac, Linux. Also works for streaming Gaming Audio (chat feature only available when used with Avantree FastStream headphones) from PS5 and Switch. Please see our other product DG45 if you’d like to connect mouse, keyboard, printer, or gaming controllers.

Kid listening to Nintendo Switch audio via Bluetooth headphone and Avantree C81 USB C Bluetooth adapter

Privacy while Gaming

Stream audio from your PS5 or Switch into your favorite pair of Bluetooth headphones so you can enjoy your late-night gaming sessions without disturbing your family or friends. You may have two pairs of Bluetooth headphones connected at the same time. **Chat function only available when used with Avantree FastStream headphones. **

C81 does not require driver installation on your pc or laptop in order to use it. It is plug, pair, and play

No Driver Installation Needed

Purchased a different USB dongle and had to go through some complicated driver program download & installation process? No worries, the C81 does NOT require any driver; simply plug it into your device, pair it with your Bluetooth headphone/speaker, and play away! On your next use, it’s just as easy; power both devices on, and good to go!

Man using C81 and a pair of Bluetooth headphones for his work from home online meetings on his laptop

Great for Meetings as Well

The C81 dongle is not only great for game audio streaming but it’s also perfect for work-from-home conference calls and meetings. Skype, Zoom, Teams, Meet & more, the Bluetooth USB adapter automatically switches between Music and Talk modes when used on a Windows PC or Mac. (Double-click to switch between the modes on Chromebook/Linux)

Bluetooth 5.0 chip built into the Avantree C81 USB Type C Audio Transmitter

Extra Stable, Extra Reliable

The C81 USB Bluetooth adapter features Bluetooth v5.0 technology. It is not only more stable and more reliable and less prone to interference, but also much less energy consuming than its predecessors. However, it is completely backwards compatible with audio devices equipped with earlier Bluetooth versions, there’s no need to worry about compatibility.

Person playing PS5, listening to PS5 gaming audio via Avantree C81 and a pair of Bluetooth headphones

aptX Low Latency Certified

The Avantree C81 Bluetooth USB adapter is Qualcomm aptX Low Latency certified; when you pair it up with a Bluetooth headphone or speaker that also supports aptX-LL, the notorious Bluetooth audio lag issue will be effectively reduced to less than 40ms (220ms for standard Bluetooth) – virtually unnoticeable, making the combination perfect for watching movies on your PC/laptop.

Range comparison for Avantree C81 Bluetooth USB C adapter against other branded USB adapters

Extend your Range

Equipped with Bluetooth v5.0 and the highest Bluetooth range, Class 1, the C81 adapter provides more robust & more reliable connectivity up to 100 ft (30 m). Need to start making dinner or grab a drink from the fridge? No problem, move around the house and do what you need to do without worrying about the audio cutting out.

The Avantree C81 used by a couple at the airport, two Bluetooth headphones connected, enjoying movie together.

Connect Two Bluetooth Devices

The dual-link feature of Avantree C81 lets you connect two Bluetooth headphones simultaneously. Stuck in a long layover with your partner? Connect two headphones to your laptop and enjoy a movie session together! We recommend using aptX low latency compatible headphones for the best audio experience.

Find What's Best for You

C81
C81
DG80
DG80
DG60
DG60
DG45
DG45
Supported DevicesHeadphones & speakerHeadphones & speakerHeadphones & speakerHeadphones, speaker, keyboard, mouse, printer
USB PortUSB CUSB AUSB AUSB A
System CompatibilityPC, Mac, Linux, PS4, PS5, SwitchPC, Mac, Linux, PS4, PS5, SwitchPC, Mac, Linux, PS4, PS5, SwitchWindows PC
Operating RangeUp to 100ft / 30mUp to 100ft / 30mUp to 164ft / 50mUp to 30ft / 10m
Supported Bluetooth CodecsaptX Low Latency, FastStream, aptX, SBCaptX Low Latency, FastStream, aptX, SBCaptx HD, aptX Low Latency, FastStream, aptX, SBCSBC
Nature of DeviceUSB sound deviceUSB sound deviceUSB sound deviceBluetooth enable your computer

Top Questions

  • How to use the dongle With Bluetooth Headphones on My PS5?

    Please watch the following instructional video for more detailed guidance.

     

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  • Part 1. Connect the Bluetooth Headphones/ Speaker to C81

    NOTE 1.1：

    1.  It is an audio adapter and recognized as a USB sound card / USB speaker when plugged in. No Bluetooth icon will appear on PC.
    2. The pairing / connection via Bluetooth is between the C81 and your Bluetooth headphones / speaker, not the PC.

    Step 1: Plug the C81 In your computer/PS4 /PS5.

    Step 2: Get the C81 into Pairing Mode.

    1st-Time Use: It'll automatically enter pairing mode. The LED indicator will rapidly Flash BLUE and White alternatively
    Note 1.2: Non-1st Time Use: Press & Hold the MFB button on C81 until the LED indicator starts flashing BLUE and White alternatively


    Step 3: Put your Headphones/Speakers into Bluetooth Pairing Mode.

    Headphone / Speaker 1st-Time Use: The Headphone/Speaker should enter pairing mode automatically when powered on.

    Note 1.3: Non-1st-Time Use: Merely powering on WILL NOT get it into pairing mode, you'll need to do so manually. Please either refer to the brand list below or refer to your Headphone/Speaker's user manual. You also can search on Google. E.g. “Bose QC35 Bluetooth Pairing Mode”

    Sony, Bose, Jabra, Apple, Beats, Google, Sennheiser, Amazon Echo, JBL, Philips, Panasonic, Audio Technica, Bang Olufsen, Skullcandy, Bowers & Wilkins

    Note 1.4: It is important to turn your cellphone, PC or any other previously paired-with devices' Bluetooth function off to avoid interference.

    With both devices in pairing mode, give them a few seconds. Once connected, the indicator on C81 will turn Solid Blue (in music mode)

    If you still can't get C81 pair with your bluetooth headphones/speakers, please try to Factory reset C81 and your devices and then pair them again as above.

    Please contact us at support@avantree.com if still have any problem.


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  • Can this Adapter/Dongle be Used with Mouse/Keyboard/Controller?

    The answer is No.

    This adapter is for AUDIO ONLY so you can only connect Headphones or Speakers or Audio Receivers to it for Audio Transmission.

    If you'd like to connect Mouse/Keyboard/Controller, please see our other product DG45 or DG40S.

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  • C81 - Microphone Not Working/ Can't talk

    If you're using a non Faststream codec headphone (like Bose, Sony, Apple headphones, they don't support Faststream codec), C81 can auto switch to talk mode on most Windows computers and Macbook. But on PS4/PS5, you need to switch it to talk mode manually if you don't use the small Mic (Use the 3.5mm Mic on PS4/PS5). Please double click the MFB button on C81 to switch it to talk mode. In call mode, LED light on C81 will be solid White.

    Note: If you use Avantree Faststream codec headphons like Aria, AH6B, NB16 with C81, no need to switch it to call mode. You can get music mode and call mode working at the same time.

    If you still can't get the mic to work once you switch C81 to talk mode, please check as following: 

    Step 1: Make sure you have set the sound setting well. Adjust the Sound Setting on Audio source.

    Step 2: Sometimes you need to adjust the settings again in the app itself like Skype. Make sure the input device has been set to the Avantree Adapter.

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  • Bad Sound Quality During Chats

    This applies to Leaf (DG50), C51, DG60, DG80 and C81

    Using your own headphone/headset with an Avantree USB adapter but unhappy with the Voice-Chat sound quality. That is because the headphone doesn't support Faststream codec.

    FastStream is a type of Bluetooth codec, all the Avantree USB adapters mentioned above supports FastStream. When you connect a headphone/headset that supports FastStream to the adapter, you'll be able to get 16-bit Stereo Quality voice chats - much better than the Mono quality you've been getting through your own headphones.

    FastStream Headphones we recommend: Aria, AH6B, Aria Pro, NB16.

    Or if you use Avantree C81 on PS4/PS5, you could use the 3.5mm mic which is coming with C81 to get the stereo sound quality while talking- How to use the 3.5mm microphone？

    Please feel free to contact us at support@avantree.com if you're still not sure.

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