Portable wireless audio receiver
Avantree CK121

Avantree CK121

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Product ID: BTCK-121-BLK

Portable wireless audio receiver - Avantree CK121

Route calls and music from a smart phone to car speakers

* AVANTREE BLUETOOTH 4.1 RECEIVER: Built with Bluetooth 4.1/HFP/HSP/A2DP/AVRCP to smart your life that you can enjoy music and hands-free calling from your smartphone in premium-quality sound.

* NO AUDIO DELAY: No lip sync delay thanks to the Fast Stream codec.

* DUAL LINKS & WIDE COMPATIBILITY: Connect with two Bluetooth devices at the same time. And it’s also compatible with any Bluetooth enabled phones, ideal for home or vehicle audio systems.

* LONG BATTERY LIFE: 8 hours of talk and play time, or up to 130 hours on standby while only needs to 1.5 hours to fully charge.

* WHAT YOU GET: Avantree stands behind this product with a 12 month warranty. In addition US 800 number (+1 800 232 2078) support and our responsive email support team are also available. 


Estimated Release Date: 

Jan. 31, 2018 on Avantree.com

Feb. 15, 2018 on Amazon US, CA, UK, DE, FR, IT, ES

Product ID: BTCK-121-BLK
  • Specification
  • Video Guide
  • FAQ & Warranty
  • Related Products
  • Manual & Driver


  • Mini size, as well as built-in battery for outdoor use
  • Multipoint support connects two devices simultaneously
  • Compatible with all A2DP stereo Bluetooth enabled devices
  • Also can be used with any speaker as a hands-free speakerphone in office, at home


  • Bluetooth Version: 4.1   
  • Frequency Range: 2.4GHz     
  • Output Power Category: Class2 
  • Bluetooth Mode: HFP/HSP/A2DP/AVRCP
  • Bluetooth Range: up to 30feet
  • Power Supply : Li-Po 110mAh
  • Working Current:15mAh (MAX)
  • Charge Voltage: DC 5.0V

What's in the box

  • Avantree Bluetooth receiver
  • Audio cable
  • 3.5mm connector
  • USB charging cable
  • User manual

Packing Info

153/84/18 mm


It is compatible with all Bluetooth enabled phones.


Bar code

69456249 30750