Small size,drum degisn and light weight. surround sound. PC,MP3,MP4,MD,CD,DVD player, Mobile phone,etc. Patented technology; material shell; simple,durable and fashion design. Using theory that resonance of sound and music released,make your place to be an concert Stereo sound effect: Mega Bass/Middle/Treble Stereo. Support:Ipod/Iphone/Blackberry/PSP MP3/MP4/MP5/PC or any standard 3.5mm audio cable. Small size and light weight make it ideal for travelers who take their favorite tunes on the road 7.High capacity up to10 hours; Can be recharged via computer USB or a 5V USB power adapter using a plug.