Mini speaker with card slot and lithium battery SD-TF11

Mini speaker

Model No:SD-TF11

Technical Parameters
power supplier:DC5V
output power: RMS 2.4W
Frequency:100HZ-20KHZ
signal&noise ratio:≥85dB
Distortion:<0.5%
Battery capacity:3.7v 300mAh
Battery Charging Voltage:4.2V±-0.05V
Impedance:4Ω±0.5Ω
Speaker Size:D36mm 
Case Material:ABS
Dimensions:55*55*35mm
Weight:110 g

Function:(TF/SD + MP3 format)
(1) Compatible with MP3/mobile/computer/ipod and other audio devices. 
(2) Can play MP3 format music from TF/SD card.
(3) With rechargable battery.

Power Source:
(1)Built in Li-ion speaker
(2)5V Adaptor
(3)USB 5V Cable(with) from computer.                                                                                          Package:color box size:11X4.5X12cm, Carton size:58.5x25.5x57.5cm, QTY/CTN:(pcs)100, N.W/G.W:(kg)11KG /12KG,
20'GP:31470pcs, 40'GP:67610pcs, 40'HQ:72280pcs

Accessories
1)Retractable cord with both the USB connector and 3.5mm Stereo connector
2)Earphone cable