I love this Mini mouse. It is small and causes less hand strain than larger mice. Unfortunately it was not compatible with the Genius TwinTouch 720e Wireless Keyboard & Mouse Kit I bought at the same time. I had hped to use the keyboard and use this Mini mouse in exchange for the one in the kit. The dongle signal with this Mini mouse is so strong that my son could not even use the wireless keyboard 720e mouse in the next room, without experiencing interference.