Pros: I use this mouse unmercifully every waking hour. Great product so far. Unbelievable range!

Cons: None so far.

Overall Review: Newegg has the best service and fastest delivery of anyone I deal with.

Pros: Absolutely none!

Cons: My computer has never went "NUTS" until I installed this ! Within the first three minutes, my computer started randomly rebooting over and over and over ...ad nauseum!

Pros: Good size, great range, love the nano receiver

Cons: Great out of the gate but no staying power. Had this unit less than a year and and it suddenly died, without warning.

Overall Review: I think that an electronic unit should have a longer life span or should be replaced.