The Heath Zenith SL-7797-02 is a wireless door chime push button. This button can transmit up to 125 feet from the pushbutton to the chime. It is offered in a off white finish and is designed to be surface mounted. The surface mount means no holes are required to install. The SL-7797-02 features a large rectangular center bar pushbutton. | Heath Zenith | | Plastic Wireless Pushbutton Doorbell | Best Buy