Features:
1. bluetooth V5.0
2. Synchronize the mobile phone time, display the 24H time
3. BASS button
4. Directional noise reduction MIC(Inhibition of electrical line noise)
5. AUX port: plug audio cable can enter audio output, plug microphone can get call reception
6. Private answer
7. Support power off memory function ,support bluetooth reconnect automatic
8. bluetooth support A2DP,AVRCP,HFP,HSP
9. Support Siri/ Google voice assistant
10. Stereo
11. Double quick charge QC3.0,PD18W
12. Support input over-voltage protection, output over-current protection, output short-circuit protection and over temperature protection.

AUX port
When the audio port is plugged in, the AUX characters lights on
plug audio cable and enter audio output,
when plug in external MIC, it can get call reception to have good acoustics.

Packaging Include:
1* Manual
1* Main device
1* Audio cable
1* Optional directional MIC
Double Microphone Design --- Car bluetooth adapter built-in microphone + 3.5mm plug-in directional microphone for better sound pickup and noise reduction, increasing the clarity of the call, high-performance microphone with noise suppression cvc technology, grants you crystal clear call. answering/redialing/dismissing or ending the call just simply click a button, drive more safely
Lossless Hi-Fi Sound & Deep Bass Booster --- Fm transmitter bluetooth for car built-in Bluetooth 5.0 chip, with faster connection speed, more stable signal receiving. radio bluetooth transmitter with DSP technology could deliver 2x steadier transmission speed without distortion for Hi-Fi stereo music. You can enjoy the HiFi music via AUX port, bluetooth, and TF card(up to 64G), can enjoy the fantastic deep bass music by pressing the B button.
Bring Voice Service to Your Car --- The Bluetooth car adapter is installed in the car's center console, so you can look at the display screen directly instead of lowering your head to the cigarette lighter. You can get info via voice guidance, stay fully focused on the road by using Siri or Google Assistant to make phone calls, send texts or get driving directions
Dual 18W Fast Charge --- Car bluetooth fm transmitter equipped with 1 Quick Charge 3.0 port(18W) and 1 PD Type-C port(18W), up to 4X faster than standard chargers
Multiple Safety ---Bluetooth adapter for car has multiple protection against battery shortage, over-current, overcharging, overheating and high temperature will guard the safety of your devices and your car battery