Logitech C-BN4 831192-D000 USB Fast RF Cordless Mouse Receiver and Cordless Optical Mouse M-RAT95a 831277-0000
Silver top and Black bottom with Blue insert around Scroll Wheel.
Mouse and Receiver have been tested to be in proper working condition.
Very nice physical appearance.
Receiver connects to your computer with USB-A, communicates with mouse with Radio Frequency, RF.