REMAX TWS-1 Half Moon Shaped Bluetooth 4.2 Wireless Bluetooth Earphone with Charging Box, TWS-1 Gold, TWS-1 Tarnish

Product specifications:
1. Bluetooth version: 4.2.
2. Transmission distance: 10m.
3. Distortion: 1%.
4. Frequency response range: 20Hz-20KHz.
5. Charge box battery: 500mAh/3.7V.
6. Headphone battery: 40mAh/3.7V (rechargeable lithium battery).
7. Battery capacity: 30mAh.
8. Talk time: 3 hours or so.
9. Music playback time: 2.5 hours or so.
10. Charging time: about 1.5 hours.
11. Standby time: about 80 hours.
12. Net weight of the product: 65g.