Mouse is a bit strange because of the use of 2 additional keys by side pressing the scroll wheel. The scroll wheel is actually without much resistance and possibly resulting in accidental Überblättern.Die range of the transmitter is, however, flawless. All in all, I come from a 5 buttons MS Intellipoint mouse cable had expected me Logitech more. But that may be my fault, I keep the Logitech's laptop, but will still be a IntelliPoint for the host get. The dealer has promptly to my contact request and precise answer, great!