... color light*You can also listen to FM radio*Built-in rechargeable battery or USB power supply *With colorful ... LED light flashing when music on*Built in Lithium battery playback above 4-5 hours*LED ... , such as mp3, mp4, CD, radio, mobile phone, computer*Popular and stylish in design *Compact and user-friendly *Good ... customer. 2.0 active professional usb sd fm computer speaker