Constructed from tough, durable aluminum and only 3.7cm in diameter it's made to go wherever you do. Small enough to clip on your bag, keys or carry in your pocket.
Bcube is a licensed product that using a patented vacuum bass design to increase its internal resonance achieved by a simple twist to expand. It has an in-built rechargeable lithium battery that can keep the music playing for over 4 hours depending how loud you play.