Large storage capacity This MP3 player supports expandable memory up to 128GB via microSD card (card not included), allowing you to store more than 10,000 songs. It is compatible with multiple formats including MP3, WMA, WAV, APE, and more, making it easy to build an organized music library of your favorite tracks. Exceptional sound quality Built in HiFi speaker and an advanced decoding chip deliver lossless sound that brings your music to life. Whether you listen through the 3.5mm headphone jack or via the speaker, you will hear music with full detail and nuance. Effortless connectivity Bluetooth 5.4 enables wireless connections to your headphones or speakers. Enjoy tangle listening with stable streaming and minimal interruptions, improving your overall listening experience. Versatile multimedia functions In addition to music playback, this device includes a calendar, stopwatch, alarm clock, FM radio, and e book reading capabilities. It supports multiple functions to keep you entertained and organized for daily activities. Use scenarios Commuting or travel Carry thousands of songs and switch playlists quickly without needing a phone. Pair with wireless headphones for convenient, cable listening on the go. Fitness and workouts Connect to Bluetooth headphones to listen to your favorite playlists while you exercise, keeping you motivated without tangled wires. Study, work, and downtime Use the FM radio for quick updates, and read e books during commutes or breaks. The built in calendar and alarm help you stay on schedule while you enjoy your music and multimedia.