Bluetooth- Player MP3 MP4 Music Speakers E-books AMV video Media Radio Recorder Glass Screen MP3 Speaker: M13-in memory: 4GResolution: 128 x 160Bluetooth version: CSRTM 4.2Color as shownmaterial: metalBattery : 800mAhFrequency response: 20Hz-20KHzCharging time: About 1.5 hoursPlay time: 48 hoursReading time: 78 hoursDistortion: Less than 0.008%Recording : MP3/WAVPlay : MP3/WMA/WAV/APE/FLACSignal to noise : Greater than 90dbSize: 8.5 x 4 x 0.7cm / 3.3 x 1.6 x 0.3inchLong battery life, charging for 1.5 hours, playing for 48 hoursSupport convenient folder classificationThe function can not only radio, but also record it and save it.One button lock screen, simple and convenientSupport OTG downloader (requires mobile phone to support OTG function) bluetooth CSR4.2, better wireless sound qualityDescribe:Touch button night backlight, it is more convenient for night operation. Support APE/FLAC and other lossless formats, support lyrics synchronization, background playing. Support AMV/ video playing. Hifi lossless sound quality, 5D sound. e-book, memory reading. -in dual PCM microphone to support long-distance recording.Package Contents:1 x MP3 Player1 x Earphone1 x USB Charger CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.