COMPATIBLE WITH TWO-WIRE CHIME SYSTEMS: Designed for seamless operation with standard two-wire electrical setups, this black wired doorbell does not require batteries. It connects easily to most hardwired door chimes (chime sold separately), offering a reliable and stylish solution for updating traditional black door bells for homes. SIMPLE WOOD SURFACE INSTALLATION: The black doorbell button includes high-quality screws and a backup for effortless mounting. Just pre-drill, oil the tips, and secure without over-tightening. Ideal for DIY setups, especially when adding a small doorbell black wired press on a wooden exterior. BUILT TO WITHSTAND OUTDOOR CONDITIONS: Finished with a durable powder-coated surface, this doorbell wired black unit resists moisture, UV rays, and general weather exposure. It’s a perfect year-round black decorative door push that maintains its appearance through the seasons. QUALITY FINISH AND LONGEVITY: Engineered from robust cast iron material, this black vintage doorbell stands up to rust, scratches, and wear. The finish retains its richness over time, delivering lasting visual appeal and functionality for any black door bell installation. MEASUREMENTS AND RECESS SIZE: Sized for precision, this unit measures 4" in length by 1 6/7" in width and installs into a recessed space of 3/4" x 1/4". Its classic round design enhances entryways with mid-century, antique, or rustic architectural themes., Manufacturer: A29 LLC