Funny Sound- Activated EL Music Light up iPhone 5 5S Case Funny Sound- Activated EL Music Light up Phone Case for Iphone 5/ 5S When there is sound around, the Equalizer would work like an all-singing-all-dancing car stereo. Attract lots of attention when youre just on the phone. When its switched off, this Equalizer iPhone case is just like another normal phone case Batteries included