Amazon has the Acoustic Research Portable Wireless Bluetooth Outdoor Speaker for a very low $19 Prime shipped. That’s $111 off the list price, $105 less than Macmall, and the lowest we could find.
It features a hidden storage compartment for personal items and it’s weather and UV resistant. It’s made to be used outdoors and it has a convenient carry handle. It also has a 2-inch tweeter and a 3-inch woofer (5 watt RMS). It operates on 6 AA batteries or an included AC adapter. It can play up to 14 hours from a single set of batteries.
It received 4.1/5 star reviews from Amazon customers.