USB DJ Mix Turntable Speaker is not only a portable speaker, but also a DJ Mix Turntable. You can interrupt the music, vary its tempo or insert the sound effect. It has a built-in Lithium Ion battery and allows to connect to all iPods, iPhone, PMP, MP3, MP4, CD player, notebook, PC, PDA, PSP, mobile phone and other digital products with 3.5mm stereo audio connector. Features:  Suppose you are a delicate DJ to scratch the disk, interrupt the music, vary its tempo or insert the sound effect  The original music will be re-created with your imagination  Built-in lithium battery  Easy to use  Colors may be variant  Dimension: 57 x 72 x 24mm (approx.)  Weight: 50g Package Contents:  USB DJ Mix Turntable Speaker  USB Charging Cable  Audio Cable China supplier:Email : fangzhengcn@hotmail.com Skype ID : chanceller819