1. Multi-function: This MP3 player supports to music, reading e-books, FM radio preset stations, and recording, meeting different needs at one time. 2. HD professional recording function: 1536KBPS bit rate, to class/meeting// recording detail (noise-reduction recording chip, high-definition long-distance recording, stable recording). 3. HiFi playback: The headphone is made of pure copper material to signal transmission. switch between headphones, speakers, and Bluetooth-compatible. MSONV music, more convenient , two-way Bluetooth-compatible transmission, support for high-definition audio transmission, NEX speakers, purer audio experience. Adopt Bluetooth-compatible V5.0 technology, two-way transmission, compatible with more Bluetooth-compatible devices. 4. E-books: Four practical functions, font size adjustment, 4 background color replacements, bookmark marks, support for e-book reading. You can categorize folders in ways according to your preferences. 5. Portable and Lightweight: This MP3 player has a and lightweight design, easy to and carry, you can put it in your pocket without discomfort, and it ' take up too much space in your bag. This recorder is suitable for meetings, classes, walking, running, etc. It supports microphone recording, you can use it anytime, anywhere. Audio Support: mp3,WAV External Memory: Yes Balanced Out: No Screen: Yes Style: mp3 Model Number: MP3 Player Function: E-Book Reading,FM Radio,Voice Recorder Supports Recording Function: Yes Supports FM: Yes Operation Mode: Touch Tone Supports EBook Reading: Yes Bluetooth-compatible version: 5.0, two-way transmission (radio and video are not supported) Screen: 1.8 inches Resolution: 128*160 Audio : (Fast/Normal compression, 800Kbps-1000Kbps, sampling rate 8KHz-48KHz), FLAC (1000Kbps-1200Kbps, sampling rate 8KHz-48KHz), MP3 (8Kbps-320Kbps, sampling rate 8KHz-48KHz), WMA(5Kbps-384Kbps, sampling rate 8KHz-48KHz), WAV(32Kbps-1536Kbps, sampling rate 8KHz-48KHz), AAC-LC (8Kbps-320Kbps, sampling rate 8KHz-48KHz), Recording : MIC Recording : WAV Video : MP4 : Support JPG/JPEG/BMP E-book : Support Clock, date, external: Support Memory expansion: Maximum support 128GB Battery capacity: 250mAh, can play continuously for about 6-8 hours Signal noise : 95dB Size: 90.5x39.5x10mm/3.56x1.56x0.39in Weight: about 31g Colour:black Material:Plastic + Metal Package Contents: 1 X MP3 1 X Charging Cable 1 X 8G Memory Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.