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But, the Slider Bluetooth keyboard for iPhone is designed to work perfectly with Apple's latest offering : the iPhone 4S and of course the iPhone 4. Design-wise it very much resembles Boxwave's keyboard buddy case for iPhone 4. However, it is distinct in its own right. Basically, this iPhone 4S physical keyboard is an clip-on accessory for your iPhone 4S. Just slid the iPhone into the case and you've an iPhone that slides-down a physical keyboard.
It features a 5-button keyboard, a rechargeable 3.7V battery, Bluetooth 2.0 connectivity and high-impact polycarbonate body that seems to double as a protective case for your iPhone.
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Technology Nerd, Slider Bluetooth Keyboard For iPhone 4S Brings Physical Keys To Your New iPhone!