LinkMejor Solid Metal Doorbell Button, Wall Mounted Door Bell, Black

Features: Solid and gloss metal push button Bright LED Light Tolerance temperature: -4 degrees Fahrenheit to 240 degrees Fahrenheit Waterproof and safe Specifications: Color: black Size: 3 inch Package includes: 1 x Doorbell button 2 x Screw holes 1 x Instruction Notes: 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), no diode is needed. Small parts included, please keep them away from little kids to avoid swallowing risk