This mouse is used and in excellent condition. It's been barely used and in great shape. It comes with a Unifying Transceiver. ~ 100% Independent, first responder owned store. Customer satisfaction is our primary mission. Buy with confidence, order ship next day or on Monday if purchased on the weekend. Thank you for the opportunity to serve you. ~ Orders Exceeding $75 may require a signature and order exceeding $100 will require a signature. All orders are packed carefully to ensure a safe arrival. Thank you ~Bryant