note:The product body memory is relatively small and the system application occupies 80%, the remaining available memory is less, you need to install a memory card to download the file to the memory card to use, to avoid lagging when using the product application due to insufficient memory in the product. Feature 1HIGH PERFORMANCE: MP4 player uses an octa core MTK chip for quicker response and smoother operation of the device. Full featured Bluetooth with wider and stable compatibility, perfect connection with Bluetooth headphones, speakers and car stereo. 2HD SCREEN AND CAMERA: This MP4 player has a 5.0 inch 16 million color HD screen that supports high resolution video and HiFi lossless music playback. Bringing you premium movie viewing and music enjoyment, it also has a photo function. 3SUPPORT WIRELESS UPLOAD: Wifi mp4 player not only provides USB cable to upload music and video, but also allows sharing or transferring files via Bluetooth and wifi. Using the provided app, you can easily transfer files between your smartphone and the player, especially for Android devices. 4LONG BATTERY LIFE: Bluetooth MP4 player has a built in 2200mAh high capacity lithium battery with low power consumption solution, which can continuously play music for 30 hours or video for 5 hours, and even standby for 300 hours. Suitable for travel and sports. 5MUSIC APPLICATION: Bluetooth music player can sort songs by title, folder, album, artist, genre, album plus artist, allows to quickly locate target songs by search and add them to playlist in bulk. Supports 4 types of play order, includes random, sequential, loop and list loop. Item Type: MP4 Player Material: Metal, Electronics System version: Android 5.1 Case: Zinc AlloySolution: MTK6582 Octa CoreBody Memory: RAM 1GB with ROM 8GBMemory Card Slot: Support 128GB Memory Re Expansion (Not Included)Screen: 5.0 Inch IPS High Definition ScreenCamera: Rear Camera 5MPScreen Color: 16 Million ColorsScreen Resolution: 340 x 800Support Sound Formats: MP3, WMA, WAV, OGG, FLAC, APESupport Video Formats: MPEG, RMVB, MPEG 4Operation Mode: Multi Point Touch TypeInterface: 3.5mm Headphone x 1, Type C x 1Battery Type: Built in 2200mAh Lithium Battery (Included) Package List1 x MP4Player1 x Type C Charging Cable