Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of money

I bought this keyboard couple of months ago and it worked nicely for 2 months but soon after, it stopped working. I have to reboot my system every time to make it work again and as soon as I hit "Ctrl" key or turn the caps lock on, it stops working again. Please don't buy this item, its sheer waste of time and money...