Silver White Color Wireless Bluetooth V3.0 Moveable Keyboard Case for iPad 2 / the New iPad / iPad 4 Bluetooth V3.0 executive standard, working distance can be up to 10 meters. Silence design, it will not affect other people's rest. It is dust-proof, anti-pollution, anti-acid waterproof for silicone part. Works with PC and commercial mobile, it will be more convenient to work. Specially designed for iPad, it will be more convenient to carry with iPad bag.