FABRIC OF Blutooth speaker
(1) Bluetooth V4.1
(2) Support 5 hour playback time at 70% volume
(3) Wireless transmission range up to 10m
Output power: 4W*1(1KHz,THD10%)
Frequency: 150Hz-18KHz
Signal&noise ratio: ≥80dB
Impedance: 4 OHM(Ω)
Li-ion Output: 3.7V~4.2V+0.05V  
Li-ion Input: 5V
Lithium battery: 300mAh
Speaker Unit: 4mm
Case Material: ABS+Fabric
Dimensions: 70.5*70.5*38mm
Weight: 98g
Color: Any color can be customed.                                 Accessories                                                                   1)USB power supply cable
2)3.5mm audio cable                  
1. 50 pcs 85*45*90mm white boxes into 1 44*24*19.5cm carton;  2.N.W/G.W:9kg/10kg;          3. 20'GP:73000pcs     40'GP:158800pcs