Kensington Pro Fit Ergonomic Wireless Keyboard and Mouse – Black (K75406US)

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Split and sloped keyboard with adjustable reverse tilt positions hands, wrists, and forearms for comfort and neutral alignment.
Dual wireless with 128-bit AES encryption security delivers the flexibility of 2. 4 GHz and Bluetooth 4. 0 LE, with Government-grade encryption.
Quiet clicking means typing and Mousing is smooth, easy, and non-disruptive.
Five mouse buttons (including forward and back) enhance navigation and productivity.
Three-mode power-saving switch allows you to toggle between 2. 4GHz, Bluetooth, and off for best battery life.