What you are looking is a Wireless Remote Control? It is a low cost multifunctional remote control with high quality. Extremely easy to set up and use. It is convenient for you to use. A wireless remote control switch is an electric switch which is controlled by a radio or other signal and does not require an operator to touch the switch. The DYK3000-4 remote control device, if electrically operated, uses batteries with a low, safe, voltage. Such a switch avoids the risk of electric shock if a user touches a switch with wet hands, and allows switching apparatus from a location without a wired switch. This wireless remote control is a must item for you! Extremely easy to set up and use. It's convenient for you to use. So what are you still waiting for?