The newly refined UE Roll 2 by Ultimate Ears. The round rugged speaker is more powerful and fifteen times louder than the older version. It comes with a floater and it is waterproof you can submerge it to 1m of water for up to 30 minutes, but we don't recommend doing it. Improved bluetooth connection range so the party won't stop even the speaker is in the middle of the pool and it can last up to 9 hours of battery life. The compact speaker has an integrated bungie strap allowing you to attach or hang the speaker wherever you want as long as it is secured.