Note: Please allow some error due to manual measurement. Specification: Item Type: MP3 MP4 Player_x000D_Material: ABS_x000D_Size: Approx. 90.5x39.5x10mm / 3.6x1.6x0.4in_x000D_Color: Black_x000D_Battery: Polymer Lithium Ion Battery (Built In) Capacity: 250 MA_x000D_Screen: 1.77 Inch_x000D_Bluetooth: V 5.0_x000D_Memory Card: Maximum (128G Without)_x000D_FM Reception Frequency: 87.5 MHz-108 MHz_x000D_Electric Book: Support TXT Format_x000D_Language: Support 9 National Languages_x000D_Recording Format: MP3 WAV_x000D_Music Playback: Support MP3, WAV And Other Playback_x000D_Recording Support: FM MIC Recording, Format Support MP3 WAV_x000D_Image Browsing Support: BMP JPG Format Browsing_x000D_Video Format Support: MP4 Format (Need To Be Converted On PC Through The Installation Of Tools), FM Radio Support_x000D_Advanced: Including (Recently Read Books, Markers, Automatic Browsing)_x000D_Day And Night Mode Features: 1MULTIFUNCTION: MP3 player supports APE, MP3, FLAC, WMA, WAV and AAC LC formats, as well as FM radio, recording, electric book (TXT format), picture browsing (JPG JPEG BMP), and video playback (only AVI format of 128x160 is supported). 2POWERFUL RECORDING FUNCTION: Bluetooth 5.0 music player has a powerful built in recording function with HIFI level sound and clear reproduction of human voice, which makes you feel like you are immersed in a live concert. 3BLUETOOTH 5.0 CHIP: MP3 MP4 player has a built in Bluetooth 5.0 chip to provide a more stable connection and easily connect to Bluetooth headphones or speakers. Can hold 1200?10000 songs. Expandable up to 128GB (not included). 4NOISE CANCELLATION: MP4 player is fully charged in 1?2 hours, allowing you to enjoy lossless music for up to 30 hours. Noise canceling recorder. Easy file management. Stylish and sophisticated, perfect for your entertainment and study. 5SMALL AND CONVENIENT: Portable HiFi music player is great for running, jogging, horseback riding, hiking, or doing other sports. Small and convenient, easy to operate, even for the elderly and children. PackageList: 1 x MP3MP4Player 1 x Instruction Manual 1 x USB Cable 1 x Memory Card