Eco- friendly Bluetooth speaker, Working Range :Up to 10m, Working Time: 2 Hours, Loudspeaker Output:() 52mm, Frequency Response:280 HZ-16KHz, Signal -to – Noise:> 95dB, Distortion: <0.5%, Battery Capacity: 400 mAh, Battery Charging Voltage : 5V+0.3V Battery charging time : 2 hours Product Size : 73×36 mm Voltage : 5V+0.3V Battery charging time : 2 hours.

Product Size : 73×36 mm.