portable Multimedia-Lautsprecher

portable multimediaspeakerFeature: 1.2.0 mini speaker , with multifunction music system,. Buid in MP3 music player,support SD card,MMC card,plug and play the music in memory. 2.Can be charged by cell phone charger or computer USB interface to charge the standard MINI USB power interfaces 3. Built in-LINE-IN interface to an external mp3, computer, MD, CD audio to use as a speaker 4. Built in-LINE-OUT headphone jack, MP3 audio can also be supplied to other speaker. Tchnology parameter: Output2.5w*2speaker driver3"*2Unit dimension2''*1''*1.5''Frequency range120Hz-18KHzS/N>/ 60db