... A-B repeat function 1.8 inch micro sd slot mp4 player support micro SD card 1.8" TFT screen ; built ... With FM stereo radio (optional) ; Support audio formats:MP3, WMA, WMV and WAV ;Support video formats:AMV;Support ... 3.7 V, 200 MA/H of lithium batteryMusic functionformat MP3, WMA, WMV,WAVHeadset maximum output(L) 5 mW ... + (R) 5 mW (32 Ohm)Support MP3 bit rate8 Kbps ~ 392 KbpsSupport WMA, WMV, bit ...