Rated input of 5V-2A for efficient power supply High battery capacity of 3.7V-8000mAh for extended usage Bluetooth 5.1 support for seamless connectivity and transmission Multiple function modes including CD, USB, Bluetooth, FM, Optical fiber, and AUX Compact design with various ports including USB, 3.5MM, Optical fiber, and USB-C charging Rated power of 10W ensures powerful audio output. The speaker has an impedance of 4Ω and a power rating of 8W, delivering clear sound quality. Charging time is approximately 5 hours, providing a working time of 1.5-2 hours. FM frequency range is from 87.5KHz to 108.0KHz, allowing for a wide selection of radio stations. The device is compatible with various formats including CD, CD-R, CD-RW, MP3, and WMA. Body buttons include volume control, play/pause, power, previous track, next track, and mode selection for user convenience. Color: As Shown Material: Plastic+Metal Package Contents: 1*CD Player Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.