1. 1 inch OLED screen 128x64 with back clip2. Aluminum alloy material+isolation process, electroplated integrated lenses, 3.5 earphone holes, Micro-USB3. Support Bluetooth transmission, e-book, timed shutdown, AB reading4. One click recording, P3 recording, PC isolated linear recording 1536Kbit, 30 hour recording time, optional voice control recording, automatic segmentation recording5. Supports multiple playback formats: MP3, WMA, OGG, APE, FLAC, WAV, AAC-LC, ACELPSupports 28 languages, with display, continuously playing for 15 hoursModel:M9display:1.2-inch color screenMusic format:MP3/WMA/WAV/APE/FLACBluetooth:Bluetooth 4.2Playback time:38HEQ sound:Normal, Rock, Funk, Hiphope, Jazz, Classical, Electronica, Custom.Lyric format:E-books:/FM radio:87.5-108MHz/76-90MHZRecording format:WAV/MP3Frequency range:20HZ-20KHzSignal-to-noise ratio: 90dBHeadphone output:Stereo channel outputlanguage:Chinese wordsBattery capacity:Built-in polymer batteryMemory:16GColour:BlackMaterial:Aluminum alloySize:4.2x4x1.2cmPackage Contents:1 * Music Player1 * USB Cable1 * English instruction manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.