We have 3 of the mice in use. The function is excellent. After three and a half years, we have the first new batteries needed. In a mouse after 2 years the function had a loose connection. It was the USB plug for the "radio-part". Because we had the mice relative very low, the damage was not very big.
Supplement 2015.04. The malfunction of a mouse have increased so much that they had to be replaced. From a single click, a double click. Mark texts hardly been possible. These errors seem to occur more often in this type.
