... diameter 45mm). Magnetic resistant 4Ohms Power supply: 5V/1000mA AC power adaptor, computer USB power rotate connect line(can choose) Colors: ... NOT included) Several power supply manners including battery, computer USB, adaptor DC-5V allow you to enjoy the charm of digital ... products at any time any where. Compatible with: Mp3, Mp4, CD, DVD, iPod, iPhone, GPS, PSP, Mobile phone, Notebook computer ...