Wireless Door Bell Doorbell Wall 1 Transmitter + 1 Receiver 10000mm x 520mm

1 x transmitter (battery included), 1x plug-in receiver (or 2x plug-in receiver, according to your choice), 1 x adhesive patch, 2 x screws, 2 x anchors, 1 x screwdriver. Free lifetime technical support and Lifetime manufacturer's warranty. Premium door chime with no extra batteries required, designed for front, side, or back doors to bring convenience to your daily life, 1000-feet working range ensures you won't miss any visitor's arrival. This product is great for customers that need a reliable notification chime for their business, and also features a small flashing strobe that provides a visual indicator. | SPETLEK Wireless Door Bell Doorbell Wall 1 Transmitter + 1 Receiver in White | Size: 10000mm x 520mm