Logitech MK950 Signature Slim Wireless Keyboard and Mouse Combo, Sleek Design, Quiet Typing and Clicking, Switch Across Three Devices, Bluetooth, Multi-OS, Works with Windows and Mac Color:White Koss SB42 communication headset delivers

Koss SB42 communication headset delivers a full range of sound that enables you to not only hear clearly

it can stay on for 56 days and play cartoons for about 14 hours

Precision and Sensitivity for a Seamless Experience: Enjoy smooth and accurate sketches or notes with 4096 pressure levels

Random number and random integer generator

14-day long battery life

Logitech MK950 Signature Slim Wireless Keyboard and Mouse Combo, Sleek Design, Quiet Typing and Clicking, Switch Across Three Devices, Bluetooth, Multi-OS, Works with Windows and Mac Color:White Koss SB42 communication headset deliversFeatures Type and Click Across Your Personal and Work Computers: Move seamlessly between your home desktop and your work laptop with this wireless and quiet keyboard and mouse combo Save Time Like Magic: Customisable keys, buttons and shortcuts for extended possibilities with the Logi Options+ App; available for Windows and macOS (3) (4) (5) Enhance Your Space: A sleek and solidly built full size bluetooth keyboard with familiar laptop style typing