Meidong Official Direct via Amazon offers the Cowin Swimmer Waterproof Bluetooth Speaker for $49.99. Coupon code "HU5ZAXYA" cuts it to $34.99. With free shipping, that's tied with our mention from two weeks ago at $95 off and the lowest price we could find. This water- and dust-proof floating Bluetooth speaker features a 10-watt subwoofer and LED lights. Deal ends July 31.