Features: Solid and gloss metal push button: Bright LED light Tolerance temperature: -4 to 240 degrees Fahrenheit Waterproof and UV resistant Specifications: Color: gold Size: 3 inch Package includes: 1 x Doorbell button 2 x Screws Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. If you use a digital ringtone (play the melody. Speakers with sound), diodes are required (not included). If you are using a mechanical doorbell ring (2 note sound. Like a mallet hitting a metal bar), diode is not needed. Pointed products, please keep them away from small kids.