?This is 38 Tunes Remote Control Digital LED Wireless Door Bell Doorbell Button. Doorbell chimes provides an extra security and convenience for you and your family£¬ you can put this Doorbell to any places of your room. This Wireless Doorbell is excellent for being used at home£¬ office£¬ shop or any places need to welcome the guests or the customers. Built-in anti-interference system£¬ avoid false ringing and miscommunication among different users. Your ideal choice!                                    Features            New and high quality flashlight 1 x button + 1 x wireless DoorbellsBlue Flash light on when guest pressing the remote buttonYou can install the doorbells in locations£¬ such as kitchen£¬ back yard£¬ bedroom£¬ etc. never miss the guestCompletely wireless operation - no wires or cables required with double side stickers at the back side of the remote button£¬ very easy to installUnique designs appearance shows the special tastes of the hostUp-date intelligent flash light design brings convenience to the hearing handicappedAll day long anti-interference system£¬ pretends the doorbell from interferences outside or between neighborsEnergy saving design of environment protection£¬ the battery inside the button can last for one year (20 presses per day)                                                            Specifications            Power Supply    two AA batteries    <br>Size of Remote Button    Approx 2.83" x 1.57" x 0.59" (L x W x H)    <br>Size of Door Bell    Approx 3.94" x 2.44" x 1.18" (L x W x H)    <br>Color    Mainly White     <br>                                                            Package Includes            1 x 38 Tunes Remote Control Digital LED Wireless Door Bell Doorbell Button1 x Doorbell Switch1 x 23A 12V Battery