Very minimal and incomplete installation information. Battery installation unclear, but device would not function as a mouse regardless of battery position. Computer recognized device, but mouse itself would not function.
It works perfectly, bought for a gift. ALTHOUGH The directions have an illustration of how to insert the batteries that is BACKWARDS. After following the direction a few times It appeared that the mouse was defective, since it wouldn’t come on. I have another working HP wireless mouse, so looked at how its batteries were installed, and put them in the new mouse THAT way. THEN the mouse worked perfectly! Mouse is EXCELLENT - battery illustration of installation directions should be updated!
Nice colors (goes well with my new laptop), and it works well, Only thing is I preferred the on and off slider on the top of the back of the mouse instead of on the side like this one is.