E-book: supports TXT document format Charging interface: TYPE-C USB1.1 charging Bluetooth compatible version: 5.2 (supports both broadcast and video) Video format: AVI, 128x160 (you need to use the conversion tool to convert by yourself) Software language: Simplified Chinese, English, German, Italian, Spanish, Dutch, Portuguese, Russian Screen: Yes Style: mp3 Support recording function: yes Support FM: Yes Whether there are speakers: Yes Operation method: touch screen + button sound Support e-book reading: Yes Bluetooth Compatible: Yes Memory card options: B-no memory card / A-with 32G memory card Display: 1.8-inch 128x160 TFT screen Operation mode: full screen touch + buttons TF card expansion: ≤128GB audio format: APE (fast/normal compression, 800Kbps-1000Kbps, sampling rate 8KHz-48KHz), FLAC (1000Kbps-1200Kbps, sampling rate 8KHz-48KHz), MP3 (8Kbps-320Kbps, sampling rate 8KHz-48KHz), MP3 (8Kbps-320Kbps, sampling rate 8KHz-48KHz) WMA (5Kbps-384Kbps, sampling rate 8KHz-48KHz), WAV (32Kbps-1536Kbps, sampling rate 8KHz-48KHz) AAC-LC (8Kbps-320Kbps, sampling rate 8KHz-48KHz) Recording format: WAV Picture: Support JPG/JPEG/BMP Battery capacity: 200mAh/3.7v lithium battery Charging specifications: 5V/1A input Charging time: about 2 hours Speaker: 1Wx8 ohm Environmental requirements: -5℃-40℃ Analog output: 3.5mm analog output Material: abs colour: Black Package Contents: 1 x headphones 1 x data cable 1 x MP4 music player Only the above package content, other products are not included. Note: Light reflection 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.