New Robot Mini Speaker for Mobile Phone PC Laptop MP3 Radio.

specification:
Power supply: 3.7V/ 250MA Li-ion battery.
Output: RMS 2.5W THD=10%
Frequency: 180Hz-20KHz
Senstitivity : 86db
Power input : DC 5V
Speaker unit: D40mm 4Ω
Material: ABS
Accessary: USB cable+3.5mm audio cable

*Compatible with speaker for PC, MP3/ MP4, mobile and notebook
*SD/ USB/ SMM Card Music Player
*Mellow and clear timbre
*Built-in active amplifier
*Pure and elegant sound quality with unsurpassed effect
*In compliance with acoustics and aesthetics rationale
*Flexible sound with distinct tone levels

*Product: 9*9*10cm
*Blister Box: 17*11.3*6.4cm
*Carton: 60*35*70cm
*QTY/ CTN: 100PCS
*N.W/ CTN: 19kg
*G.W/ CTN: 20kg