Product Name:mp3/m4 speakers,portable speaker,mobile speaker,speaker systems

Product Features:
1)Compact size stereo audio system
2)Built-in Li-ion battery, no need extra battery is required
3)Built-in digital amplifier, saving energy
4)With storable 3.5mm jack audio cable
5)Customized colors and logos are welcome
6)Ideal for gifs and promotional items
7)Compatible with all portable audio devices

Technical Parameters:
Power output          RMS 2Wx2  THD+N1%
Frequency response     50Hz - 20KHz
Input voltage           DC 5V
Speaker unit            40mm 4  2W
Built-in battery         Lithium-ion battery
SNR                  >90db
Response sensitivity    90db
Case material          Pure ABS
Dimensions            125x63x26mm
Weight                110g

Accessory:
1) Battery recharge cable   1pcs.
2) User manner            1pcs.

Package:
Gift box:   140x120x32mm   180g
Carton Size 43.8*38.4*25.4cm:    60 gift boxes/Carton   11.6kg