This Volta double watch winder features beautiful high gloss carbon fiber finish with black leather interior. The interior is lit by a white LED light that beautifully showcases the watch on the winder. This high quality watch winder is powered by ultra quiet Japanese Mabuchi motor and operates by a 110/240v power adapter. To control the motor of the winder, you will find an LCD screen inside of the winder. You can control the revolution direction and the speed (TPD) of the winder. You are able to select clockwise, counterclockwise setting, or a combination of clockwise and counterclockwise revolutions. With this Volta winder, you are able to select a speed (TPD) setting of 650, 900, 1350, or 1800 revoltions, so you will definitely be able to find the right setting for your fine watches.