This speaker is a high-powered and waterproof device that provides a rich bass sound and a wireless streaming experience. It is powered by a 7.4V, 4400mAh rechargeable battery and has a 5.25’’ sound system. The speaker is also equipped with a wired microphone for clear and crisp sound. Price drops from $104.99 to $29.99. Shipping is free w/Prime or adds $6.