Specification:
Bluetooth Version: 5.0
Battery Capacity: 50mAh
Transmission Distance: 10m
Speaker Impedance: 8mm 32Ω
Microphone Sensitivity: -42db
Working Temperature: 10-50 degC
Charging Voltage: DC 5V
Standby Time: about 120 hours
Playing Time: about 3-5h
Charging Time: about 1.5 hours
Battery Capacity: 150mAh
Output Voltage: 5V
Output Current: 1A
Headphone Size: 28 x 22 x 16mm / 1.1 x 0.86 x 0.62"