Experience powerful bass in a travel-friendly size. Designed for more than just music, the Cube Bluetooth Speaker features a built-in microphone, for hands-free calling at the touch of a button. Featuring TWS stereo sound, this speaker can also be paired with a second speaker to provide even more sound. Up to 5 hours of continuous playtime on a single charge, a convenient on/off button and microSD card slot for MP3 playback. Rechargeable. Operational range up to 33 ft. 5 watts. Limited 1 year warranty. Black.