Store over 10,000 songs with expandable memory: this MP3 player with Bluetooth supports microSD expansion up to 128GB (card not included). It plays MP3, WMA, WAV, APE, FLAC, AACLC, M4A, OGG and more, so you can put your favorite music in and create your own music space. HiFi lossless sound quality: builtin speakers and a powerful sound decoding chip reproduce fidelity music. A 3.5 mm headphone jack allows private listening with headphones (not included). The recording function provides lossless sound quality and clearly reproduces human voice. Bluetooth connection: Bluetooth 5.4 delivers stable transmission with anti interference capabilities. You can connect to Bluetooth headphones or Bluetooth speakers for wireless listening. Note that the Bluetooth function only supports Bluetooth headphones and Bluetooth speakers. Multi functional: in addition to playing music, it offers calendar, stopwatch, alarm clock, FM radio, picture viewer, e books and more. A practical and compact HiFi MP3 player. Use scenarios: Daily commute or travel: enjoy long listening sessions with up to 48 hours of playback on a single charge and wireless listening via Bluetooth. Exercise or outdoor activities: portable design with long battery life lets you listen without wires. Study or leisure at home: switch between music, FM radio, and e books for a versatile media experience.