Features:BT5.0 technology, get a faster and more stable connection. Power consumption will be reduced, increasing battery life.The fuselage is mini, easy to carry, equipped with 3.5MM headphones, listen to music, and read e-books anytime and anywhere. Support most of the formats of the audio files MP3, FLAC, APE, WAV, etc.Support for inserting memory cards and enables you to download music, movies, and E-books on the device. The mp3 player comes with a TF card slot. You can also expand the storage to 128GB.Adopt zinc alloy shell, 2.98inch TFT color screen display, high sensitive touch key + side button control.A powerful MP3 player with slim, many helpful features with Music, E-book, FM, Voice recorder, Video, Calendar, Alarm, etc.Specification:Model: M50Material: Zinc Alloy, ABSBT Version: 5.0Power Supply: DC 5V 500mABattery: 3.7V 1000mAhScreen: 2.98inchInput Interface: AUX/TF/USBVideo format: support RM,RMVB, AV, MKV, WMV,VOB,MOV,FLV. ASF, DAT, MP4, 3GP, MPG, MPEG, and other 720P and 1080P HD video playback, without conversion, direct playbackAudio format: support full format lossless music MP3, WMA, Ogg, APE, FLAC, WAV, AAC-LC, ACELP format playback.SNR: 90dBFrequency Response Range: 20Hz-20KHzCharge Time: 2.5 hoursVideo Play Time: 4-6 hoursMusic Play Time: 15 hoursColor: BlackItem Size: approx.10.3*3.3*1.3cm / 4.06*1.3*0.51inPackage Size: approx. 13*7.5*5cm / 5.12*2.95*1.97inPackage Weight: approx. 245g / 8.64ozPackage List:1 * Music Player1 * USB Cable1 * 3.5mm Earphone1 * User Manual