product details: Bluetooth version: 5.0 Protocol: A2DP/AVRCP/HFP/HSP/SPP * Battery capacity: 110mAh, base battery: 300mAh *Call listening to songs: 6-8 hours or so * Standby time: about 100 hours *Box battery capacity: 300mAh (charge 2 times) * Effective distance: 10 meters (TWS-True Wireless) * Charging time: 1 hour or so
Ipx4 waterproof, support master-slave switch