MP3 Player has a system theme option, which has 3 themes are available for choice. A good way for updates mood, also a tiny music world for unfolding unique. Powerful music management installed. Playlist creation, sort by categories, play models selection and EQ feature are perfect for you.Music Player which has Video function. Accepts formats of MP4, MKV, MOV, AVI, FLV, 3GP/3G2. 720p playback supports, 50% brightness keeps 4 hours playing. Portable mp3 player accepts music formats for MP3, WAV, FLAC, OGG, WMA, APE, M4A, AAC, MP2, AMR, MID, M4R, MMF, WV, AIF, AIFF, AU, RA, MKA, AC3, CAF, etc. Battery life guarantee, 1250mAh safety battery keeps 25-30 hours music playing( with wire earbuds 50% volume). Uniquely design for buttons of MP3 player, touch on wheel for menu control, totally user friendly