Battery capacity: 1800mAh lithium battery
Bluetooth version: 5.0
Speaker: 5W * 2
Transmission distance: about 10m
Frequency response: 100Hz-20KHz
Signal to noise ratio: ≥90dB
Working voltage: 3.7V
Distortion: <1%
Charging voltage: DC5V
Charging interface: Micro USB
Call duration: about 3h
Music player: about 3.5h
Standby time: ≥30 days
Charging time: about 2.5h (different charger specifications have different times)