1.for ipod,mp3,mp4,cd,pc and mobiles 2.fm radio,usb&sd. 3.lcd display. 4.remote control,headset functionality. 5.direct factory. Details information:. 1.support usb/sd/mmc card. 2.for use with:mobile phone/ipodpsp/mp3 mp4. 3. Battery:build-in li-battery,rechargeable. 4.3.5mm audio input port. Technology parameters:. 1.out put:rms 3wx2. 2.frequency response:100hz-20khz. 3.s/n radio:>=85db. 4.lond speaker:1.5"x3w/4ohm. 5.input:3.7v. 6.output:3.7vx1000ma. 7.built-in rechargeable. 8.li-ion battery. Features:. Stereo sound.ultra-low sound. Powered from the bat 5v and dc 5v. Packaging:. Speaker size:. 190x50mm. Carton size:. 625x395x390mm. Weight:. 195g. Quantity:. 50pcs/carton. N.w:. 26.7kgs. G.w:. 27.6kgs. Accessory:. Usb cable,audio cable. ,remote control,battery.