1. The picture is particle-free, more high-definition, up to 16 million color high-definition screen, clearer display, more details, less noise, 480*854 pixels, visual effects are more stunning and stunning2. The all-metal thin and thin body is rated 1+8GB large-capacity memory, and it supports the expansion of 128GB memory card, and learning courses, novels, music, high-definition movies, etc. can be downloaded3. The body Type-C transmission interface, front and back blind plugging, sturdy and more durable 1600 mAh battery, high performance, low power consumption, and strong endurance4. Bluetooth 5.0 wireless connection, support mobile phone Bluetooth, Bluetooth headset, Bluetooth audio, listen to music while watching e-books, pictures, videos, more powerful than ordinary MP3 functions, support to connect to Android phones, and receive Android phone file transfer simultaneously5. Support connect to WiFi Internet, download apps, watch TVProduct parameterStorage capacity 1GB storage + 8GB memory(Built-in)Screen size 4.0 inchesAudio format MP3, WMA, OGG, ACC, AMR_NB, AMR_WB, FLAC, ADPCMVideo format Video decoding H.264/H.2631080P@30fps, 3GP, MPEG4, RMVB, AVI, RM, MPG, MKV, WMVPicture format JPG, BMP, PNG, JPEGE-book format TXT, UMD, JARRecording format 3GPS/N ratio greater or equal to 75dbTransmission interface MICRO-USB2.0Operating system Android 6.0Bluetooth: 5.0Battery specification 1600 mAh polymer batteryOperating temperature/humidity 0 to 45 degrees CelsiusPlaying time: 2 (hours)Menu language: 24 countriesSpeaker: there is a speakerAdditional features: support Bluetooth, picture browsing, FM radio function, recording function, external playback function, video output, intelligent operating systemColour: blackMaterial: aluminum alloySize: 101 x 61 x 08mmPackage Contents:1 x MP4 player1 x USB cableOnly the above package content, other products are not included.Note: Light shooting 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.