Trexcell Black Thermoplastic TPU Cover Case for Sprint HTC Evo 4G Extended Battery Designed specifically for the HTC Evo 4G aftermarket extended battery and cover Access to all phone ports and buttons. Open access to speakers, microphone & camera. Manufactured from a TPU Hard Silicone. Protects your phone from falls and scratches and will NOT stretch out. Power button is exposed making it easier to "wake" and "sleep" your screen. 5x harder than silicone. Will not collect lint.