... FM stereo radio (optional) ; Support audio formats:MP3, WMA, WMV and WAV ;Support video formats:AMV ... 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 ... only includes malfunctions due to manufacturing defects. 1.8 inch mp4 player with tf card built in speaker (BT-P234 ...