2-Pack Altec Lansing Baby Boom XL Bluetooth Speaker

This speaker delivers deep bass and crystal clear audio, is waterproof and shockproof, and has a built-in rechargeable battery that provides up to 6 hours of interrupted music. It is perfect for outdoor and wet environments and can be recharged through any USB outlet. Price drops from $42.19 to just $25.73. Shipping is free with Amazon Prime or is otherwise a flat $6 per order.