I bought this three years ago. The right-click function has stopped working, so I'm selling it to someone who can use it for parts, etc. It's in pretty good condition, and everything else, including Bluetooth and USB, works fine. Here are the product specifications: A blue wireless mouse with silent buttons. - Brand: logi - Model Name: SIGNATURE M750 - Size: S/M - Color: Blue - Features: Silent buttons - Connectivity: USB receiver, Bluetooth - Switch between 3 devices Thank you for looking.