Foco - BLACK - Sound Booster Enhancer Amplifier for iPad Air, Ipad mini, Ipad 2,3,4 Iphone 5 and Much More Foco redirects amplifies and focuses the sound from your iPad speakers back to you Foco works with iPad 2, 3 and 4 - iPhone 5 - iPad Air/Mini (You will need 2 Focos as seen in the images because mini/Air have 2 speakers) with its reuseable specialy formulated tacky pad. After some use thepad will get dirty and just clean with a damp cloth or run some water over it to rejuvenate the pad and its back to original strength Foco works with the smart cover and smart case Foco works with many other cases on the market that have a smooth area around the speaker area for it to be attached to Foco works with out magnets, electricity or batteries and because only the pad makes contact with your device there is no plactic to block the screen or scratch your device