Features: High-clear professional recording function: With a bit rate of 1536KBPS, noise reduction recording chip, true recording, high-clear long-distance recording, high-level recording microphone, it can restore every detail of the recording, suitable for listening to classes, meetings, leisure, etc. Convenient folder classification: You can create folders for your favorite singers, classify by singer, album, music style, my favorite, every playback is your favorite. Built-in speaker: Super large external release, no broken sound, large coverage area, you can enjoy clear sound quality indoors or outdoors. Lightweight and portable: The whole machine weighs only 30 grams, whether studying or exercising, you can hardly feel the weight, convenient to carry. High-fidelity HiFi playback: The headphone jack is made of pure copper material to ensure smooth signal transmission. The warm and thick audio technology, headphones, external release, BT switch freely, two-way BT 4.0 transmission, support high-clear audio transmission. High-quality FM radio: preset radio stations, manual tuning, make your life no longer lonely. Multi-function e-book: adjust font size, 4 background colors to change, bookmark marking, support TXT e-book reading, to provide you with a better reading experience. Specification: Optional color: Black / White / Red & White / Dark Blue / Blue & White Optional memory: 16G / 32G / 64G / 128G Music playback: support for MP3, WAV, and other playback Recording support: FM MIC recording, format support MP3 WAV Picture browsing support: BMP JPG format browsing Video format support: MP4 format (need to be converted on PC through the installation tool) Support: FM Radio/Text reading support/Multi-language/BT receive and send Support language: Chinese/English/French/German/Italian/Portuguese/ Spanish/Japanese/Dutch Functions: Including - Recently Read Books, Marker, Auto Browse, Day/Night Mode System Support: WINDOWS XP/VISTA/WINDOW8 Battery capacity: 250mAh Battery life: approx. 8 hours Screen resolution: 320*240 BT version: 4.0, support two-way transmission Recording format: MP3/WAV Product size: 90.5*39.5*10mm Product weight: 31g Package size: 127*73*41mm Package weight: 94g Package list: 1* MP4 Player 1* Charging Cable 1* Earphone 1* Instruction manual