OPPO S39 is one of OPPO Smart series players. OPPO S39 MP4 Player offers a 2.4-inch LCD with touchpad, 320×240 resolution. Will be blue when touch it. A 4GB of internal memory, support MicroSD memory card. The device support AVI/RM/RMVB/FLV video files, and comptible with MPG/MPEG/DAT/ASF video formats. and MP3, WAV, WMA, APE, FLACaudio files. 520mAh li-ion battery built in, last for 10 hours music playback. Other functions include clander, clock, world clock and password settings.