Guess Mini Bluetooth Speaker 3W 4H Black

Bluetooth v5.0
Material: aluminum
Max range: 10m
Power max 3W
Frequency range 20hz - 20khz
Battery: 3.7V / 300 mAh polymer battery
Working time: 4h
Dimensions: 49.5 x 36 mm
Weight 76g  Type: Bluetooth speaker | Bluetooth: + | Playback time: 4 h | Built-in battery: 3.7V / 300 mAh | Battery type: Polymer | Frequency range: 20Hz-20kHz | Total output power : 3W | Color: Black | Dimensions: 49.5 x 36 mm | Weight (kg): 0.076