A780BL wireless headset

Bluetooth version: Bluetooth V5.0
Standby time: 300 hours
Talk time: 12 hours
Music time: 13-15 hours
Charging time: 2 hours
Frequency response range: 2.402G-2.480G
Battery capacity: 250mAh
Communication distance: 10 meters
Supported protocols: HSP, HFP, A2DP, AVRCP