V15 Car Bluetooth With PD Fast Charger Adapter Microphone Wireless Noise Reduction Bluetooth Headset, V15

1. Working voltage: 12V-24V
2. Battery capacity: 45mAH
3. Headphone charging current: 5V=1A
4. Bluetooth version: 5.0
5. SNR: 95dB
6.USB output :PD 25W/5V3.1A
7. Playing time: about 3 hours