1. Earphones Wireless specification: Wireless V5.0 CSR, hence it supports protocol headset, hands-free, A2DP, AVRCP.
2. Transmission range is up to 10 meters. Transmission frequency: 2.4GHz.
3. Charging voltage DC5V. Charging time is about 2 hours.
4. Charging box battery capacity: 280mah, left and right ear battery capacity each 50 mah. Product size: L59*W33*H36mm.
5. Talk time: 4.5 hours, music time: 4.5 hours, standby time: 210 hours, net weight: 38g.
6. Battery display, support for Apple phones and some Android phones.