. Supports: MP3 & WMA . Supports MMC/SD/MS，SONY MEMORY STICK UP TO 1G . OLED 4 colors display . 6 Preset EQ . Build-in rechargeable battery (upto 40hrs continue play) . USB 2.0 (High spd) . Dimensions: 94.3*54*16mm . Weight: 99g . Packing Weight: 430g