Mp4 player Wireless FM transmission, suitable to be used in car. Full-frequency radiation, frequency range: 87.5, 87.6, 87.7, ..., ..., 107.8, 107.9, 108.0MHz, total 206 frequencies optional, 0.1MHz interval Stainless steel back housing, super-thin, 7.5mm thickness only, wonderful, smart and fashionable appearance 1.5/1.8 inch TFT, colorful and clear display, high quality video playing Support multiple audio formats(MP1/MP2/MP3/WMA/ASF/WAV etc.) Long time recording , song title and lyric shown synchronously Unique AMV film playing function, JPEG and GIF picture browsing, TXT E-book High quality record, A-B repeat; 7 EQ optional, graphics menu Make fªEncrypted space fª on mobile disk to protect private information Built-in powerful polymer lithium battery; 18 languages supported Double power supply method, charged by charger and PC while connecting Auto power off & memorizing function