JQUEEN Quad Automatic Watch Winder Six Storage Case Dual motors design - second set of rotation system with its own power switch. You could choose to turn on one motor or both, allowing maximum flexibility and versatility. Each rotating platform can be independently programmed. For example, you can have the left rotator turns clockwise, and have the right rotator turns counter-clockwise; or any program that fits your other watches. Thus no matter which watch brands you have, the JQUEEN watch winders will be able to accommodate all different settings. 3 User select programs to fit all watches design specifications: Clockwise, Counter-clockwise, and Bi-directional Alternate mode (turn clockwise then counter-clockwise automatically and repeat the cycle, as required by watches like Rolex and other brands that require Alternate turning mode). Build in storage for 6 additional watches. Front lock with key provided, to safeguard your valuable watch collection. AC/DC Power : Runs on batteries (use 2 C-size alkaline batteries), as well as normal household AC power (AC adaptor is included, 100 volt to 240 volt, fit any country's voltage requirement). Our JQUEEN watch winder is one of the very few battery powered watch winders, offering you the flexibility to place the watchwinders inside your vault if needed.