The Ultimate Ears Wonderboom is the perfect addition to your pool party. This compact speaker has a waterproof design. This means it won't break when it's dropped in water. The speaker's sound is distributed over 360 degrees which means you won't have to aim the design exactly to your listening position. Place the speaker in the middle of a circle and everyone will be listening to the same, clear sound. Did one of your friends also bring a Wonderboom? Simply connect the 2 Wonderboom speakers by pressing the UE button on top of the devices simultaneously. After 3 seconds, you will hear a sound and the speakers are linked.