This speaker provides crystal clear sound, with colorful lights twinkling along with the music beats. Plays up to 30 feet (10 meters) from any Bluetooth-enabled device such as your smart phone, notebook, tablet, or mp3 player. Equipped with a 3W speaker and built in microphone for hands-free calls. Simple buttons make it easy to answer/hang up calls, control the volume and music. Supports TF card and FM function.