Introducing Ultimate Ears EPICBOOM, a portable Bluetooth speaker with bassy 360° immersive sound and adaptive or preset EQ for epic sound anywhere. Enjoy two easy ways to boost any party—use PartyUp mode to sync your speaker with your friends’ for louder sound, or hit the Outdoor Boost for better sound in the great outdoors. | Ultimate Ears | | EPICBOOM Portable Wireless Bluetooth Waterproof Speaker with 17 Hour Battery and 180 ft Range | Charcoal Black | Best Buy