kensington pro fit mobile wireless mouse with nano receiver black k72366us
plug-and-stay nano receiver is so small you can plug it in and leave it in . or store the receiver in the battery compartment advanced blue optical sensor tracks on more surfaces than standard optical 2.4 ghz wireless for long range and minimal interference contoured buttons and sculpted sides mean no compromise on comfort built to last with a limited lifetime warranty built to survive the bumps and bruises of on-the-go use up to 6 month battery life pc and mac compatible