ULTIMATE EARS HYPERBOOM Black – Ultimate Ears HYPERBOOM rocks a supermassive sound that takes your party to the stratosphere. With up to 24 hours of mind-blowing sound you can keep dancing all-day all-night. BIG LOUD PRISTINE SOUND plus EXTREME BASS: Ultimate Ears HYPERBOOM is a portable Bluetooth speaker with supermassive beautifully rich sound with big booming bass. EASY MUSIC SHARING: Play music from four different devices and easily switch between them with just a press of a button. Connect via two Bluetooth inputs one auxiliary and one optical input. ALL DAY 24 HOUR BATTERY LIFE: HYPERBOOM sports an up to 24-hour rechargeable battery that keeps the party pumpin? wherever you take it. Or plug it in to rage for the rest of time. ADAPTIVE EQUALIZER: This party speaker does all the heavy lifting to rock a pitch-perfect sound anywhere. Its brainy adaptive EQ literally reads the environment?and automatically customizes the sound to whatever space it?s in. SPILL AND SPLASH PROOF: HYPERBOOM is built to handle the sloshiest of soirées. Got a spill or splash the IPX4 rating has got your back! Simply wipe it off and you?re good to go. PARTY UP: Connect HYPERBOOM with any BOOM MEGABOOM or even another HYPERBOOM to kick-start a party of truly ultimate proportions. Adding just two to four can reach noise-violation levels of fun. USB CHARGE OUT: HYPERBOOM is the party powerhouse that even gives your phone a boost. Flip open the weather door plug into the USB charge-out and keep bangin? while your phone?s powering up. ONE TOUCH MUSIC CONTROL: HYPERBOOM lets you play pause and skip tracks directly on the speaker. You can also set up one-touch to your playlist via the app.