[Geeks Designer Line] Black/ White Apple iPhone 4 / 4S Plastic Case Cover [Anti Slip] Supports Premium High Definition Anti-Scratch Screen Protector; Durable Fashion Snap on Hard Case; Coolest Ultra Slim Case Cover for iPhone 4 / 4S Supports Apple 4 / 4S Devices From Verizon, AT&T, Sprint, and T-Mobile Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it. Built-in short circuit and over-charge protection. Safety First! We can provide custom phone cases with any design for you. If you want, please contact us! Show your pride Full access to all ports, buttons, and functionality.