Proxelle via Amazon offers the Proxelle Portable Waterproof Wireless Speaker in Green for $24.99. Coupon code "67JJC5GA" cuts it to $17.49. With free shipping for Prime members, that's the lowest price we could find by $14. It features IP67 rated water proofing, 33-foot range, Bluetooth 4.0, hands free calling, and a 10-hour playtime. Deal ends April 14.