Bluetooth version: V5.1
Bluetooth Distance: 10M
Mic sensitivity: -40 �±3dB
Mic directivity: omnidirectional
Speaker diameter 40mm
Speakerfrequency range: 20Hz~20KHz
Speaker impedance: 32 �±15%
Battery capacity: 400mA
Charging interface: Type C
Operating time: 8 hour
Standby time: 100h
Color: new blue, elegant pink, lake green, khaki, black