Instruct: Classify a given review as either positive or negative.
Query: Broke after a year

Worked great to begin with, good range etc. But then after a while I started noticing range issues, such as typing with the keyboard on my knees, if my leg was at a certain angle, the keyboard would not respond. I think now this is a failing of the RF sender unit in the keyboard, because now it has stopped working altogether. I've tried it on 3 different computers, and none of them can make it work, so its not a driver issue. I've done all the reset options (button on the USB dongle, Fn key, enter key twice) and nothing works. It is dead. $80 for something that lasts only a year is not good in my book.