1.surport TF/SD,usb-disk 2.portable,fashionable design 3.Supporting USB2.0 high speed transmission 4, ... resistant 4 Ohms Power supply: 5V/1000mA AC power adapter, Computer USB Power rotate connect line (can choose), Built in Rechargeable ... concept integral stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer, U disk ...