Allowing interaction with navigation keys, I/O ports, camera, and webcam, OtterBox 1990 11.5 oz case safeguards Samsung Q1 Ultra and Q1 Ultra Premium UMPCs from drops by offering 3 layers of protection. Layer 1 is thermal formed protective clear membrane that slides on to safeguard screen and keys from scratches, dirt, and dust, while layer 2 is high-impact polycarbonate shell that snaps together over device and layer 3 is silicone skin that wraps over case to protect from bumps and shock.