Specifications: MP3 MP4 Supports Bluetooth connection, FM radio function, back clip function, video playback, recording function, e-book function, image browsing, alarm clock function, date and time function (including time and date setting), supported languages (English, German, Italian, Spanish, Dutch, Portuguese) Parameters: Total dimensions: 66 mm to 41.5 mm to 18 mm Software language: Simplified Chinese, English and other national languages Product weight: approx. 34 grams Display: 1,77 inches Resolution: 128 x 160 Bluetooth: V5.2 Audio format: APE (Fast/Normal Compression, 800 Kbps–1000 Kbps, sample rate 8 KHz–48 KHz), FLAC (1000Kbps-1200Kbps, sample rate 8KHz-48KHz), MP3 (8Kbps-320Kbps, sample rate 8KHz-48KHz), WMA (5Kbps-384Kbps, sample rate 8KHz-48KHz), WAV (32Kbps-1536Kbps, sample rate 8KHz-48KHz), AAC-LC (8Kbps-320Kbps, sample rate 8KHz-48KHz), Video format: AVI 128 x 160 (conversion tool) Recording format: WAV Image format: Supports JPG/JPEG/BMP E-book format: TXT document TF card extension: ≤128G Charging specifications: 5V 1000mA Video format: 128 x 160 (requires a conversion tool to convert) E-book format: TXT Battery: 3,7 V Polymer Battery Loading time: approx. 2 hours Note: Supported operating systems: WindowsXP/Vista/Windows8/Mac OS10.12 or later. Scope of delivery: 1 x MP3/MP4 Player