Features 1.[Stable And Efficient] MP4 player uses an octa core MTK chip, making the device more sensitive and run more smoothly. It is equipped with full featured duplex BT for broader and stable BT compatibility and perfect connection with BT headphones, speakers and car stereo. 2.[HD Screen And HiFi Sound] With a 4.0 inch 16 million color HD screen, this MP4 player supports high resolution video and HiFi lossless music playback, which will bring you premium movie viewing and music enjoyment. Touch screen design, more convenient operation. 3.[Long Battery Life] The BT music player has a built in 800mAh lithium battery with low power consumption solution, which can play 30 hours of music or 5 hours of video continuously, and even standby for 300 hours. Fully meet your travel or sports needs. 4.[Multifunctional] BT mp4 player can sort songs by title, folder, album, artist, genre, album plus artist, allow to quickly locate target songs by search and add them to playlist in bulk. Provides 4 kinds of play order, including random play, sequential play, loop play, and list loop. 5.[Wireless Upload] This music player not only provides USB cable to upload music and video, but also allows you to share or transfer files via BT and wifi. Using the provided file transfer application, you can easily transfer files between your smartphone and the player, especially for Android devices. specificationItem Type: MP4 Player Material: Metal, Electronics Program: MTK6582 Screen: 4.0 Inch IPS High Definition Screen Case: Zinc Alloy Middle Frame Screen Color: 16 Million Colors Screen Resolution: 340 x 800 Support Sound Formats: MP3, WMA, WAV, OGG, FLAC, APE Support Video Format: MPEG, RMVB, MPEG 4 Operation Mode: Multi Point Touch Type Memory: 2GB with 16GB Memory Card Slot: Support 128GB Memory Expansion (Not Included) Interface: 3.5mm Earphone x 1, Type C x 1 Battery Type: Built in 800mAh Lithium Battery PackageList1 x MP4Player 1 x TYPE C Charging Cable 1 x Wired Earphone 1 x Instruction Manual