Features:Powered by a photoelectric dual-power supply of light and button battery. It automatically switches modes according to the environment. When there is light, it can be switched to light mode. For longer, the button battery model is AG10, and the b..
Calculators are essential. We use them at work, school, or while running errands on the daily. As vital as this instrument is, the design and the typing experience has not been changed in years. However, at Lofree, we want to take on this challenge and gi..