$29.99 for Logitech Brand Bluetooth Keyboard, Cover and Stand for Ipad 
it can be used on the  iPad 2, 3rd & 4th Generation w/ Clip and Go Design.

FEATURES

• Compatible with iPad2, 3rd and 4th generation iPad
• Ultrathin (8mm), aluminum design that perfectly complements your iPad
• Bluetooth wireless keyboard
• Stand holds your iPad at an optimum viewing angle in the portrait or landscape position
• External keyboard frees up screen space on your iPad
• Work faster thanks to shortcut keys for commands like copy, paste, undo and more
• Up to 6 months battery life on full charge (based on 2 hr. per day usage)
• Charges using the included USB cable
• The Logitech Ultrathin Keyboard Cover securely attaches to your iPad—thanks to the clever magnetic clips that are designed to work with the magnets in the iPad’s frame
• Automatically draws tablet and cover together and guides the covers into the right place
• Instant On/Off automatically wakes your iPad when you open the cover—and puts it to sleep when you close it to help preserve battery life of both your iPad and the keyboard 
• Colors: Black, White or Red Finish
• Dimensions: 7.5” height x 9.5” width x 0.4” depth 
• Weight: 0.8 pounds