Bluetooth Version: 4.1

Lithium battery:300mAh

Output power:3W(1KHz,THD10%)

Play time:up to 5 hours on a single charge

Certificates:CE,FCC,RoHS

Compatile with your PC,Laptop, for iphone,for ipad,xiaomi,huawei and other mobile devices.

Output power:  3W(1KHz,THD10%)
Frequency: 150Hz-18KHz
Signal&noise ratio:  ≥80dB
Impedance: 4 OHM(Ω)
Li-ion Output:  3.7V~4.2V+0.05V 
Lithium battery: 1*18650 , 1500mAh
Speaker Unit: 36mm
Case Material: ABS
Dimensions: L60*W60*H94 mm
Weight: 190g
Color: Black. Silver.                                                                               Accessories: USB charging cable