Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Flawless

I was just playing with the unit so that I could add some more items to this review. Things that the mouse will work well on: My shirt, my wood desk, the side of my printer, a calkboard, the wall, the carpet. It does not work well on my hair.I believe I am on my 3rd workday (that means 7+ hours of use per day) without a recharge and the mouse still does not need to be charged. I'm able to use both the mouse and keyboard up to a distance of about 10 feet away from the base.For those of you concerned that you may need any extra items, you won't. The package comes with everything you need to get up and running. When I bought the Duo I was a little worried that I'd need a separate radio transmitter card and that fear was unfounded. The radio reciever is included and it just plugs right into where your wired mouse and keyboard plug in.I think it is hard to go wrong with this product.