1、【High-Fidelity Sound Quality】: Experience the superior sound quality with our BT CD Player. It features built-in stereo speakers, dual horn output, and a professional cavity structure that delivers powerful bass and clear high frequencies. With 5 different modes including CD, BT, FM, AUX, and USB, it creates a 3D surround sound experience for your enjoyment. 2、【Versatile Audio Format Support】: Our portable CD player supports a variety of audio formats such as CD/CD-R/CD-RW/MP3/WAV. It is equipped with BT 5.1 technology for both receiving and transmitting BT signals. You can easily connect it to BT headphones, speakers, smartphones, laptops, and tablets for a seamless audio experience. 3、【LED Display and USB Playback】: The CD player features an LED screen display for easy operation. It supports USB playback (FAT32 format), allowing you to play music from a USB flash drive. This is especially useful for children who can download a vast amount of audio learning files from the internet and play them on the device (supports MP3 format only), helping them to focus more on their studies. 4、【Remote Control and 3.5mm Audio Port】: Our CD player comes with a remote control for convenient operation. It also has a standard 3.5mm audio input/output port. You can plug in headphones for private listening or connect it to other audio devices. It supports various playback modes including "repeat once", "repeat all", "shuffle", "normal", and A-B repeat. 5、【Portable & Long Battery Life】The compact and lightweight design makes it easy to carry around. It is powered by a built-in 2000mAh rechargeable battery and supports Type-C charging, compatible with various charging methods such as mobile car, USB adapter, and laptop charger. The transparent dust cover protects the device from dust, and the Hold lock key prevents accidental operation.