Kensington Pro Fit Ergonomic Wireless Keyboard, Bluetooth - Black (K75401US)

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 keys means typing is smooth easy and non-disruptive Spill-proof keys make cleanup fast and easy; Meets MIL-STD-810H Method 504.3 Contamination by Fluids testing for resistance to breakdown when exposed to cleaning and disinfecting solvents such as alcohol and bleach for at least 24 hours Three-mode power-saving switch allows you to toggle between 2 4GHz Bluetooth and off for best battery life