Dier DK11 800m Helmet Wireless Bluetooth Headset 5.0 Waterproof Double Motorcycle Call headset, DK11

Product parameters:
1. Bluetooth version: V5.0
2. Battery capacity: 450mAh
3. Charging voltage/current: DV 5V/450mA
4. Frequency: 2.4GHz
5. Amplifier: HT4832SQ
6. Working time: about 32 hours
7. Mobile phone distance: 10 meters