This is the wireless keyboard with 2X larger keys and 250% larger font that makes key identification and striking easier. The 1" sq. keys have 42-point characters (1/2" tall) in bold, black san serif font against a white background, improving readability and helping to reduce eyestrain. The wireless keyboard connects to a computer, iPad, or any Bluetooth-enabled device to provide an easy-to-use keyboard with optimal freedom of movement. The 80-key layout includes 12 oval function keys that are easily distinguishable, arrow keys, and page up and down buttons. Keyboard is height-adjustable for ergonomic set up. Includes a USB Bluetooth receiver that enables wireless connection to computers that do not have Bluetooth. Requires two AAA batteries. Compatible with Windows 8, 7, Vista, XP, ME, 2000, 98SE; works with Mac 10.1.5 and later, all iPhone, iPad, and iPod models. 19" L x 7" W x 1 3/4" H. (1 3/4 lbs.)