Tech-Life BeatBlock - Wireless Bluetooth Speaker: Rechargeable, Ultra-Durable and Splashproof (Bombproof Rubber Exterior-Black)
The sound is unbelievable especially given the size of this thing. It has excellent battery life and recharges pretty quickly. Underneath, where the bass emits, the construction feels a little cheap considering what they cost. Still, I have to give it five stars because of its sound quality.