Bluetooth 5.0 Wireless Audio Receiving Transmitter Car Handsfree Call 3.5mm Bluetooth Adapter Bluetooth 5.0 upgraded adapter, transmit / receive two in, mode switching at will, wireless more comfortable. This Bluetooth adapter can be connected to non Bluetooth audio system, home stereo, speaker, wired headset, etc., with a wide range of applications. Equipped with Bluetooth 5.0 chip, stable connection,fast transmission speed , wide signal range. The signal is stable, high-speed output, fast response, rejection delay and jamming. Install a Bluetooth adapter for your car, turn the car audio into Bluetooth audio in seconds, enjoy mobile music, hands- call, voice navigation and broadcasting, and drive safer. The built-in high-performance independent earphone also improves the audio performance, but also has fine and sound quality, truly restores the beauty of music and enjoys a more shocking auditory feast. 250mAh high capacity lithium battery,full of energy, 10 hours of continuous playback, support simultaneous charging and use when connected. Exquisite appearance, small and convenient, elegant lamp, unique design, color and sound, make a warm of around you. Specification: Product model: BR01 Battery capacity:250mAh Playback duration:10h Signal noise ratio90dB Frequency:2.4GHz Transmission distance:10m/393.7inch Charging voltage:DC 5V Music level:HIFI HD stereo Standby time:100 day Net weight:17g/0.04Ib Gross weight:55g/0.12Ib Product size: 5.6x3.1x1.2cm/2.2x1.2x0.4 inch Package size:8x8x2cm/3.15x3.15x0.79 inch Package Includes: 1 x Bluetooth adapter 1 x Charging line 1 x Audio cable 1 x Coherer 1 x Instructions