Borofone Wireless Headset BC28 Shiny Sound

Borofone bc28 shiny sound wireless v5.0 headset, 40mah battery for 4 hours of music / calls, 100 hours of standby
1. Bt version: v5.0, chip blue news 5335b.
2. Battery capacity: 40mah. Charging time: about 50 minutes.
3. Calls / music time: 4 hours.
4. Standby time: 100 hours.
5. Sizes: 28*16*23mm.
6. Weight: 3g.