Purchase the Ultimate Ears Epicboom Waterproof Bluetooth Wireless Speaker: https://www.ultimateears.com/en-us/wireless-speakers/epicboom-bluetooth.html

Introducing Ultimate Ears EPICBOOM, a portable waterproof Bluetooth speaker with bassy, 360-degree immersive sound and adaptive or preset EQ for epic sound you can take anywhere. Enjoy two easy ways to boost any party—use PartyUp mode to sync EPICBOOM with your friends' speakers for louder sound, or hit the Outdoor Boost for better sound in the great outdoors. Keep the party going longer with 17 hours of playtime and a massive 180 ft (55 m) range. One-touch NFC connection makes it simple to pair and switch devices. Plus, this waterproof portable Bluetooth speaker is IP67 rated to withstand dust and can be submerged in 1 m of water for 30 minutes so you can party at the pool, the beach or even in the shower.