[HiFi Stereo Audio] Bluetooth receiver is equipped with the latest Bluetooth 5.3 technology, optimizing the transmission delay and connection defect problems of the old Bluetooth 5.0. Bluetooth 5.3 adapter will bring you a faster, more stable, and smarter connection with less sound quality loss. up to working distance, enough for daily use. [Clearer Calls]The Bluetooth car adapter is equipped with dual microphones working in to your voice from 360° for smoother calls. The upgraded CVC8.0 technology and built-in filter IC effectively filters out more road noise, current sound, and other distractions, resulting in clearer hands-free calls on both ends of . [Plug and Play]Simply plug it into the 3.5mm auxiliary and power it through the USB port! Start your car and the Bluetooth car adapter will automatically pair your phone immediately. And it allows users to pair and share two devices at the same time to enjoy music and hands-free calls. [Multifunction Button & LED Light Design]The button designed by the Bluetooth receiver supports one-key up and down song/volume up/down//hang up/call back. Ease of use, no distractions, and driving. LED lights easier to find buttons when night falls. [Multi Safety Protection] Bluetooth adapter strictly follows national quality standards and has passed FCC, , RoHS, BQB, and other certifications. The AUX Bluetooth adapter has built-in withstand voltage protection, overcurrent protection, short circuit protection, and NTC overheat protection. Make equipment is safe to use. type:Bluetooth Adapter Colour:Black Material:ABS+PC Size:40.5mmx45.7mmx11.4mm Package Contents: 1 * Bluetooth Adapter 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.