J22 Bluetooth-compatible 5.0 Adapter 3.5mm Aux Jack Transmitter for Car Music Audio PC Headphone Handsfree Receiver 
Feature:
1. You can connect this wireless receiver to a speaker, car radio, wired earphone, and so on, and it will automatically connect to the last paired device.
2. This car AUX wireless receiver adopts bT 5.0 chip. It is easy to connect and has a fast and stable signal and wide signal range.
3. Using CVC 8.0 noise reduction technology, it can reduce the background noise.
4. This car radio wireless adapter allows you to connect with two devices. And it has a built-in mic for a handsfree call.
5. This wireless audio adapter can work for about 16 hours and it is convenient to operate. One button to answer, re-dial, reject a phone call.

Specification:
Color: Black
Bluetooth-compatible version: 5.0
Mic mic: 0-1m/capacitive microphone: - 38dB
Working hours: about 8-10 hours
Power supply voltage: DC / 5V
Shutdown current: 3uA
Standby current: 3-12ma
Bluetooth-compatible playback working current: 15-20ma
Charging current: 150mA
Lithium battery: 250mA / h 602025
Charging time: about 2.5 hours
Operating temperature range: 0 - 53 °
Output distortion (1kHz / - 10dB) : <  0.1%
Frequency response: 20-20KHz
Product size: 58 * 34 * 12mm/2.3*1.3*0.47in

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.