Huawei U8800 Impulse 4G Black Rubber Protective Case Form-fitting front and back Hard-shell Snap-On Covers Molded to fit. Easy Installation - No tools required. All you do is Snap the 2 pieces onto the device and it is ready! Plug your charger and/or hands free without removing the Case. It allows access to all buttons and functions. Protect your mobile from scratches, dust or anything else that comes into contact with.