Wireless standard "ac" - labeled 802.11a/b/g/n/ac
Can be purchased just about anywhere that sells computer supplies – Wal-Mart, Best Buy, etc. or Online stores such as Amazon.com, NewEgg.com, etc. Name brands are Google, Belkin, D-Link, Buffalo, and many others.
Microfiber Cloth – typically used to clean eyeglasses or CD’s and are available for a couple dollars at a number of stores.
Never spray liquids on the screen