Brand: Lenovo

Model: HE05

BT version: 5.0

Material: metal, silicone, TPE

Transmission distance: 10m (accessible)

Waterproof: IPX5

Dustproof: IP6X

Battery: 3.7V / 105mAh

Working time: about 8 hours

Standby time: about 120 hours

Charging time: about 2 hours

Speaker sensitivity: 98dB

Frequency response range: 20-20kHz