The compact keyboard is about 36 percent smaller than our standard keyboards but still has all the standard keys, so doing the things you love is as easy as ever Reliable connection upto 10 metres (33 feet) away, with virtually no delays or dropouts because of the tiny Logitech Unifying receiver with Logitech Advanced 2.4 GHz wireless connectivity The receiver is small enough to stay in your laptop and lets you add up to five compatible devices to it 128-bit AES keyboard encryption helps keep your information secure With a 2-year battery life and auto-sleep, you can catch up on Facebook and email friends for years without the hassle of changing batteries The battery door on top of the keyboard doubles as a fun design element with light gray, pink and blue options you can swap to suit your mood or decor