SURFOU Wireless Doorbell for Home, 1 Push Button & 2 Plug-in Receivers

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• 1300FT LONG-RANGE COVERAGE FOR LARGE HOMES - Advanced wireless technology extends coverage up to 1300ft in open areas, perfect for large homes, multi-story houses, villas, and offices. Signal penetrates walls and doors effectively so you never miss visitors whether in the backyard, garden, or upstairs bedrooms
• WEATHERPROOF OUTDOOR BUTTON WITH TEMPERATURE RESISTANCE - The transmitter button withstands harsh weather conditions from -4°F to 140°F (-20°C to 60°C). Rain, snow, and extreme heat won't affect performance. Built for year-round outdoor durability on front doors, back doors, garages, and gates
• 55 CUSTOMIZABLE CHIMES WITH SILENT MODE & LED - Choose from 55 different melodies and 5 adjustable volume levels (0dB to 110dB). The silent mode with LED flash indicator is perfect for nurseries, homes with sleeping babies, hearing-impaired individuals, and quiet environments
• 2-MINUTE PLUG-AND-PLAY INSTALLATION - No wiring required. Simply plug receivers into standard outlets and mount the transmitter with included adhesive tape or screws. Pre-paired 1-button and 2-receiver kit works out of the box with no programming needed
• SMART MEMORY FUNCTION & EXPANDABLE SYSTEM - Remembers last set melody and volume even after power outages. Expandable design allows adding more SURFOU receivers or buttons to cover every entry point