OtterBox Commuter Series f/Motorola ATRIX HD - Crevasse Type: Case Compatible Phone Manufacturer: Motorola Features: Complete functionality of the device through the ATRIX HD case, including the microphone, speaker, camera and flash Silicone plugs cover the main openings of the phone, including volume controls, power button and headphone jack Two layers of sleek protection include a silicone inner layer and a polycarbonate outer layer Environmental Protection: The Commuter Series Motorola ATRIX HD case provides added protection against bump and shock