General description This Wireless Doorbell offers a portable and weatherproof solution for your home, featuring a long-range wireless transmission of up to 300 meters (1000 feet) in open areas. It ensures that you never miss a visitor, whether you're cooking in the kitchen or tending to your garden. Technical specifications Size: 11.7 x 9 x 8.4 cm Weight: 220 grams Receiver input: 110V to 240V, 50/60Hz Volume adjustment: 4 levels (0-85dB) Transmitter input: 12V 23A alkaline battery Working frequency: 433.92MHz Wireless range: 300 meters Battery life: 3 years Compatibility and accessories Includes 1 Transmitter 1 x 12V battery 2 Receivers 1 x 3M tape 1 Manual 1 Screwdriver Usage Choose from 36 CD-quality sound melodies Adjustable volume levels suitable for different environments Flashing light indicator for visual alerts Other information Special waterproof ring structure allows operation in temperatures ranging from -4 °F to 140 °F Can be installed indoors, on door frames, or in