• Wireless doorbell kit that includes: 1 outdoor remote doorbell transmitter, 1 plug-in smart doorbell receiver, double-sided tape, anchors, screws, and an A23 battery with a lifespan of up to 3 years. • Easy to install and customize with over 50 doorbell sounds and 4 volume settings, ideal for naps or parties. • Long-range technology without the need for Wi-Fi or Bluetooth, with a signal that varies up to 1000 feet, perfect for large homes, apartments, offices, and warehouses. • Smart doorbell with memory for custom settings and modern LED lights that flash for easy nighttime visibility. Weather-resistant, operates in temperatures from -4°F to 140°F. • Versatile for any occasion: apartment houses, townhouses, small businesses, warehouses, offices, and condominium properties. Useful both outdoors and indoors, for example, for teachers seeking better classroom organization. • Product dimensions: 3.8 cm wide, 8.9 cm high, and 8.3 cm long. Weight: 0.196 kg.