Specification: 

Bluetooth version: V5.0

Transmission range: 10 metes

Loudspeaker Output: 3W 

Signal-to-Noise: ≥85dB

Battery Charging Voltage:5V±0.5V

Sensitivity: 40HM 

Frequency range: 80Hz-20KHz 

Use: Portable Audio Player, Mobile Phone,Computer 

Build-in battery capacity: 300mAh 

Battery type: Li-ion battery 

Battery Charge Time: 2.5 hours

Play time:about 1-2 hours 

Size: 55mm(L)*55mm(W)*55mm(H) 

Material: Silica gel.Plastics.

Color：black,red,blue,green,pink

Net Weight: 80g