Pros: easily pairs with any OS: Personally tested and paired with: Mint Linux 17 [Ubuntu], iPhone (iOS 6.1), and with chromebook (ChromeOS 38.0.2125.110 Stable). Easy paring: insert _fresh_ batteries, turn on and press the little black 'pairing' button, which causes the red indicator light to in... Pros: easily pairs with any OS: Personally tested and paired with: Mint Linux 17 [Ubuntu], iPhone (iOS 6.1), and with chromebook (ChromeOS 38.0.2125.110 Stable). Easy paring: insert _fresh_ batteries, turn on and press the little black 'pairing' button, which causes the red indicator light to blink. Simply type in the numerical pairing code the the other device will generate and display, hit Enter, and you're "good to go". You can pair it with more than one computer / device. NOTE however, it will only send output to the most recently / currently active paired device. To switch to another device, either disable the bluetooth connection or shut down the current device,and re-enable in the other device. Cons: contrary to the illustration on the very tiny sheet of paper containing the instructions, this particular item *does NOT* have any USB connection ports. Hence, it cannot be employed with a "smart TV". Overall impression: build is sturdy, extremely light (you can almost fit it into a coat-pocket!). Depending on the device the keyboard may provide additional diacritical characters depending on what hot-key combinations one employs. I have found that (to my surprise) a lot of the function keys, and the "Options" [ie. macintosh] key (in combination) provide many native functions on the *chromebook*! I would be strongly inclined to purchase this item again, and I highly recommend it. FTW, the reason I did not give a full 5 stars is because it lacks the usb option ... so I'm being a bit prejudiced here. ;-)) Read more