Source:
https://scmp.com/article/499986/water-proof

WATER PROOF

Like the various computers this essential peripheral equipment supports, the keyboard and mouse have evolved in design and finish over the years. The new Microsoft Wireless Desktop 1000 shows how far things have progressed. Priced at $349, this product features an intelligent, spill-resistant design. Neat built-in water channels for draining away liquids prevent the keyboard from malfunctioning or wearing out early due to spills. Microsoft Wireless Desktop 1000 delivers 27-megahertz wireless connection to give precision, speed and freedom of usage at a range of up to six feet. It is equipped with Windows hot keys and other commonly used keys - including My Pictures and My Document - for the user's convenience. It also offers built-in multimedia keys including play/pause, volume up/down and stop. The mouse incorporates a built-in scroll wheel for fast, accurate control. This design also thoughtfully caters to both left- and right-handed users.