1. Note: Manual measurement, please allow some errors. 2. Features: 1. Supports music player (APE, MP3, FLAC, WMA, WAV and AAC LC formats), also supports FM radio, audio recording, alarm clock, e-books (TXT format), photo browsing (JPG, JPEG, BMP) and video playback (supports 128 x 160 AVI format). 2. Bluetooth 5.0: The MP3 player has a built-in Bluetooth 5.0 chip, ensuring more stable connection, better compatibility, easily connect Bluetooth headphones or Bluetooth speakers, so that the sound quality is lossless. And supports up to 128GB memory card (not included) expansion. 3. Recording and FM radio: Built-in recording function, HIFI sound, clear human voice reproduction. Built-in FM radio, listen to your favorite radio stations and connect wired headphones (not included) as an antenna to search for more stations. 4. Small and Portable: This music player weighs only 2.86 ounces, you can carry it with you when running, jogging, hiking or other sports. Small and convenient, 1.77 inch LCD screen, easy to operate, even the elderly and children can use it easily. 5. Long battery life: Our music player allows you to enjoy up to 30 hours of truly lossless music listening, up to 3 months of standby time and fully charged in 1-2 hours. One device for multiple needs, suitable for entertainment and learning. 3. Specification: Item Type: Music Player; Material: ABS; Size: Approx. 90.5 x 39.5 x 10 mm / 3.6 x 1.6 x 0.4 in.; Battery: Built-in 250mAh polymer lithium-ion battery; Display: 1.77 inch; BT: V 5.0; 5MHz-108MHz; E-book: Supports TXT format; Language: Supports 9 languages; Recording format: MP3, WAV; Music playback: MP3, WAV and other formats; Recording support: FM MIC recording, format supports MP3 WAV; Image viewer support: BMP JPG; Video format support: AVI format support (need to convert on PC using a conversion tool); FM radio supported; Speaker: Built-in; Advanced: Includes (recently read books, bookmarks, automatic navigation), day, night mode. 4. Package included: 1 x Music Player; 1 x User Manual; 1 x USB Cable.