Allinone multimedia MP4 player Multifunctional design: use it as a music player, image browser, radio, voice recorder, speaker, TXT ebook reader, stopwatch, or pedometer. It supports Bluetooth, memory expansion (card not included), and a sleep/timer off function. Video and display: supports video mode in AMV format, with a digital screen that makes it easy to view photos and videos. Available storage options are 4GB, 8GB and 16GB. Bluetooth connectivity: connect to Bluetoothenabled devices such as speakers and headphones for convenient playback. Expandable memory: accepts expansion cards (not included) to increase storage capacity. Rechargeable power: builtin 250 mAh battery provides extended use between charges. Practical use scenarios Daily commute or workout: listen to music or radio, pair with Bluetooth headphones, track steps with the pedometer, and use the stopwatch when timing intervals. Reading and browsing on the go: read TXT Ebooks and view images or photos on the builtin screen for quick reference during breaks. Travel and study: store music, ebooks, and photos, playback videos in AMV format, and connect to a portable speaker for group listening. Key attributes at a glance Functions: music player, image browser, radio, voice recorder, speaker, TXT Ebook reader, stopwatch, pedometer Video capability: AMV format support; digital display for photos and videos Storage options: 4GB, 8GB, 16GB Connectivity: Bluetoothenabled; supports Bluetooth speakers and headphones Expandability: supports external memory expansion (card not included) Battery: builtin 250 mAh for longer use between charges Timer feature: sleep/off timer available