HP 574457-001 Wireless Mobile Mouse - Compact Bluetooth Mouse for Laptop, PC, Mac - Portable Travel Mouse for Office, Home & On-the-Go Use

I had this mouse previously in the same style as the laptop. I got this one as a backup. I am glad I found the same style as I like the 2 extra, customizable buttons on opposite sides of the mouse (versus others that I have seen where the 2 buttons are on one side of the mouse). The size is perfect for my hand, allowing for ease of control of all functions of the mouse. And the usb drive is very small and does not get in the way. I also like that this mouse has an on/off switch (versus another one I have where you have to put the larger usb drive into the mouse itself to turn it off).