Car Hands-Free Speaker Phone Multi-Point Visor Speaker for Cell Phones Smartphone Car Charger Hands-Free Bluetooth Car Speaker Features: - Built-in microphone speaker to support hands-free calling; - Unique magnet mount with detachable clip for different positions. ;<br> Magnetic installation, easy to disassemble, car/home use, with lanyard, can be used outdoors;<br> DSP technology achieves noise reduction and echo cancellation;<br> Pair two wireless devices simultaneously;<br> Supports playing MP3/WMA directly from TF card;<br> Support mobile phone navigation voice prompts.;-Bluetooth answer, hang up, reject, redial and other functions.;-Auto power-off memory function.;-Support Bluetooth stereo music playback.;-Voice dialing (supports Android/Apple Siri/Google Assistant); Specifications:<br> 1. Bluetooth version: 4.2+EDR, supports SIRI function (voice dialing function);<br> 2. Bluetooth voice processing: A2DP (Advanced Audio Distribution Profile);<br> 3. Bluetooth frequency: ISM2.4GHz; 4. Rated working voltage: 12V ~24V;<br> 5.Limited working voltage: 8-32V;<br> 6. Support music formats: MP3/WMA/WAV;<br> 7. Support TF card capacity: 1G-32G;<br> 8. Working temperature: 60dB;<br> 10. Distortion: 60dB;<br> 13. Bluetooth transmission distance: 0-10M;<br> 14. Bluetooth microphone effective distance: 0.5-2m;<br> 15. Effective transmission distance: 2m; 16. Built-in rechargeable battery: 3.7V 500mAh; 17. Hands-free battery run time: up to 10 hours; 18. Music playback battery run time: up to 3 hours;<br> Packing list: 1 x wireless car speaker; 1 x USB cable; 1 x manual; 1 x lanyard; 1 x<br> Notice:<br> 1. All pictures are professionally calibrated, but due to ambient light and different display device settings, there may be some deviations in the pictures and items you see, please forgive me. ;<br> 2. The data is measured manually and there may be certain deviations, but it does not affect the use.