So your M705 dies and you need a replacement. You like the M705 so you buy the same model. But guess what? Logitech still calls it the M705 but it's a cheaply made version of the old one. And best of all not all the hardware buttons are included. No thumb button, no tilt buttons. What's really cool is the software still lets you configure actions for these missing buttons. Buttons that are not even included in this "new" model. What a joke. Returned.