... 2.Brand new and high quality 3.With USB and Card reader 4.Support the host function ... . Several power supply manners including: Battery, computer USB, adaptor DC-5V allow you to enjoy the ... , DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer and micro SD/TF Feature:1.128*32 three ... amplifier:>=80Db*Magnetic resistant: 4 Ohms*Power supply: USB power supply available*Color: Silver, Pink, Blue, ...