[Enjoy wireless streaming HI-FI music]: Through 3.5mm AUX adapter, Bluetooth receiver can be connected to non-Bluetooth car audio , home stereos, speakers and wired headphones; Equipped with advanced Bluetooth 5.1, built-in smart chip, HI-FI wireless audio experience, stable connection, fast transmission speed and wide signal range. [Intelligent Active Noise Cancellation]: The Bluetooth 5.0 AUX audio receiver adopts dual noise reduction technology, the latest CVC8.0 noise reduction and digital signal processor (DSP) technology, combined with an enhanced microphone, can eliminate and block background interference noise ( such as wind, or crowds), so you can enjoy clear sound quality on all calls. [Hands-Free Calling and Navigation]: Built-in microphone to sound, multi-function "" button to /redial/hang up/reject calls, help you make hands-free calls. Designed with volume up/down buttons, it is convenient to adjust the music volume. Additionally, Bluetooth audio receiver supports broadcasting voice announcements from existing navigation applications. You 't have to look down at your phone while on the move. You can enjoy convenient, efficient and safe driving. [Dual Device Connection]: One button to power on and enter pairing mode, this portable bluetooth audio receiver can connect to 2 devices at the same time. switch from one phone to another while on a call or playing music. paired, the car receiver will automatically to the last paired Bluetooth device within wireless range. color:Gray-black Material:plastic Package Contents: 1 x Car Bluetooth AUX Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.