Soundcore Anker Rave Party 2 Portable Speaker, 120W Stereo Sound, PartyCast 2.0,

Rave Party 2 is designed with two 4" woofers and two 2" tweeters. PartyCast 2.0 syncs your speakers perfectly to the beat. Perfect for Pool Parties: A little water never hurt anyone, nor does it hurt Rave Party 2.

eBay