1RECHARGEABLE: The portable CD player is equipped with a built in 2000mAh battery that can be fully charged in 4 hours and provides up to 5 hours of playback time. 2BUILT IN SPEAKER: Enjoy clear and loudly sound with the built in speaker of the CD player. It can also be used as an outdoor speaker, perfect for picnics or gatherings. 3MULTI FUNCTIONALITY: The CD player features an anti skip function, allowing uninterrupted playback even during exercise or car rides. It also has a memory playback function, so you can continue where you left off. 4WIDE COMPATIBILITY: Compatible with various CD formats such as CD, CDRW, and MP3. It can also be connected through a 3.5mm input or USB port, providing versatile playback options. 5UNIQUE FEATURES: The CD player offers unique features like CD to USB recording, allowing you to transfer CDs to a USB drive for convenient storage, and enabling you to record sound directly onto a USB drive for quick and easy recording purposes.