Wireless bluetooth waterproof speaker with long battery life - 6 colors to choose from -
appears to also be available for non-members. Looks to be around $10-$15 below normal price and free shipping. Will be a good for use at the pool next summer.
Didn't find many reviews, but the two folks that bought it gave it favorable marks.
IP67 Waterproof/Shock Resistant
Big sound & long playtime packed into a slim, rugged, and portable size
Loud 15W speaker with large bass enhancing passive woofer
15+ hours of playtime
EcoTalk button for easy activation of Siri and OK Google voice assistant
EcoConnect compatible – pair two units together ( up to 30 feet away) for stereo sound
Bluetooth 4.2 streams audio wirelessly from up to 100 feet away via your Smartphone, tablet or any Bluetooth enabled device
Input & Outputs
Micro USB Charging input jack
3.5mm Aux-in port for wired connection
Powered by Rechargeable Lithium Battery
Battery size: 2600mAh, 3.7V
Fully re-charges in 3 hours