Store over 10,000 songs with expandable memory up to 128 GB (memory card not included). Supports multiple formats including MP3, WMA, WAV, APE, FLAC, AACLC, M4A, OGG, and more to create your own music space. Longlasting playback: builtin 500 mAh battery, full charge in about 2 hours, and up to 48 hours of playback time. HiFi lossless sound quality: designed with quality speakers and a powerful sound decoding chip to restore original HiFi sound. Includes a 3.5 mm headphone jack for private listening (headphones not included). Recording function provides lossless sound quality for clearly reproduced voice. Bluetooth wireless listening: Bluetooth 5.4 for stable wireless transmission with minimal interference. Supports connection to Bluetooth headphones and Bluetooth speakers. Note that Bluetooth mode only supports Bluetooth headphones and speakers. Multifunctional features: not only a music player but also calendar, stopwatch, alarm clock, FM radio, photo viewing, e books and more. A practical gift option for children, family or friends. Practical use scenarios: Commuting or traveling with a large music library for offline listening. Working out or exercising with wireless Bluetooth headphones for freedom of movement. Studying, relaxing at home, or keeping entertained with radio, photos, and e books.