To maximize the advantages of this mouse and experience maximum comfort, a correct fit is required. Therefore the hand has to be measured.

Measure on the inside of the stretched out hand, the distance from your wrist (the cross over between hand and arm) up to the tip of the ring finger. This length provides an indication of the required size.

Ultimate Lithium AAA Batteries are designed for cameras and other high-drain electronic devices. Lithium batteries last up to seven times longer than leading ordinary alkaline batteries and weigh 1/3 less than standard alkaline batteries. Batteries offer a leak-resistant construction and perform in even the most extreme temperatures from negative 40 to 140 degrees Fahrenheit. Lithium AAA batteries offer a 20-year shelf life.