Your product’s model number (which typically looks like M-RBU126, V-UMB46, Y-UV90, R-IG7, etc. ) can usually be found:
M/N: R-RB5, R-R0001
If you already have a Unifying receiver and want to connect additional compatible mice or keyboards, you can get the Logitech Unifying software here.
© 2013 Logitech. All rights reserved