The smart switch features timer function, intelligent linkage, App remote control, hands-free voice control, and fast pairing. So it can be used easily. As one wireless switch can be controlled by multiple mobile phones, you can share it with your family so that everyone can easily control it. Made of ABS and PC fire retardant material, it is durable. The length of this smart switch is 8.6cm, the width is 8.6cm, and the height is 4.2cm. It is suitable for living rooms, hallways and stairways. Item Name: Smart Switch Material: ABS, PC Fire Retardant Socket Type: EU Plug, UK Plug, for National Standard Features: Timer Function, Intelligent Linkage, App Remote Control Size Details: 8.6cm x 8.6cm x 4.2cm/3.39" x 3.39" x 1.65" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Smart Switch