Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Invest more money, this keyboard/mouse not worth it

I bought this product maybe a year ago and haven't really used it much since then. It goes through A LOT of batteries, way more than the average person would ever want to place in a wireless keyboard and mouse. The keyboard and mouse never shut off so even when your computer is off you are still losing battery power. I brought this back out last week sometime and have been using it and taking the batteries out when I am done. In the middle of typing last night the keyboard completely stopped working. Tried everything to get it to work with no avail. The only way it does work is if I hold the keyboard so it is vertical and try to type like that. Definitely not worth it and I would invest in a better set.