Sliding 2-in-1 Iphone 4/4s Combo Case w/ Backlight Bluetooth White Keyboard 1. Ultra-slim slide bluetooth wireless keyboard for iPhone 4 2. Just plug and play,easy connection. 3. On/off switch lets you conserve its battery life 4. Bluetooth Sliding Keyboard With Backlight. 5. Keyboard slides out for use, then slides back in when done.