Aluminium case speaker with flash led light                                                                                   
Supportmicro SDcard and Usb host (from32m~8gb)                                                    
Suitable for devices equipment by 3.5mm audio cable, including cell phones, MP3 players, portable CD players and laptop/desktop computers.              
support 87.5-1080MHZ stereo fm radio
support LI-in /outfunction , MP3 playing function
Apply to pu,laptop,PDA mobilephone,mp3/mp4 player
American SRS Sound effect with exceptional good sound

inside rechargeable 600malithiumbattery
Acessories:1pcsUsb charge cable,1pcsbox,1remote contler,1pcsuser'manual ,1pcs3.5 Standard stereo audio cable
Output(RMS):5.0wx1    
Speaker: 4Ω 5W   
Input Sensitivity:: AUX 450mV /FM 380mV /TFCARD USB 450mV   
Separation:≥55dB   
Distortion:1%(3.7V/1K/1W)   
Machine S/N: ≥68dB   
Charging power supply:DC 5V   
Operating Voltage: DC 3.7V   
Battery capacity: 600mA