Long battery life - half volume via wired earbuds for 25 hours music playback, 1250 mAh capacity balancing excellent convenience and function. Portable MP3 player - MP3 has 64 gram ( 2.26 oz) equivalent to 8 dollar coins, shaped as a pocket card. Formats supported - MP3, OGG, MAV, FLAC, AMR, MID, AAC, APE, etc. Compatible with ROCKBOX system by the way, what an awesome
MP3 it is: ) Video function - Video of 720p can be played smoothly, supported formats include MP4, MKV, MOV, AVI, FLV, 3GP