Introduction to function useForward for 2 minutes, stop for 6 minutes; reverse for 2 minutes, stop for 6 minutes; cycle, every minute (6.5-8.5 rpm)Material: MDF, piano paint, lining beige beadsMotor: Marlboro to Silent MotorSize: 18.3*18*21CMSpeed: every minute (6.5-8.5 rpm)Voltage: External DC power jack + power switch, easy to use. (Bottom battery slot, 100-240V, excluding battery)Mini compactThe mini is compact and can be placed in a safe, cloakroom or travel, or you can use 2 AA.PrecautionsThe product is wooden piano paint. Please pay attention to it when using it, avoid being scratched by sharp objects. Cleaning method: wipe with special rag, you can wipe fingerprints easily (if necessary, you can dip water), do not use detergent Wipe with chemicals! !Packaging includes1*watch winder1*AC power adapter1* instruction manual