Sound and Expandable Storage Crystal clear hifi sound with support for mp3, wma, wav, ape, flac, aac, lc, m4a, and ogg formats. Expandable storage up to 128 GB with a memory card. Up to 48 hours of playback on a single 2hour charge, powered by a 500 mAh battery. Multifunctional Entertainment Device Supports video playback, FM radio, photo viewing, electronic books, wallpapers, alarm clocks, and a stopwatch. Record voice memos and set reminders, delivering entertainment and productivity in one device. Wireless Freedom with Bluetooth 5.4 Pair with earphones or speakers for wireless listening. Bluetooth 5.4 provides stable connectivity and clear audio, reducing tangled cords. Builtin Camera for Capturing Memories Builtin camera with 1280x720 resolution. Take photos and videos while enjoying your music during family gatherings, holidays, or everyday moments. Use scenarios Daily commute or workouts: long battery life, expandable storage, and wireless listening make it easy to enjoy music and media on the go. Travel and family moments: watch videos, view photos, read ebooks, and capture memories with the builtin camera while keeping your favorite tunes playing. Study or productivity: use voice memos, reminders, alarms, and stopwatch to stay organized and efficient.