TECKNET Wireless Doorbell Battery with 3 Receivers, 4.5 Year Battery Life Cordless Door Chime Kit, 1312 ft Long Range, IP65 Waterproof Door Bell, 60 Melodies & 5-Level Volume, LED Flash, No Plug

【400m/1,312 ft Wireless Range】Experience flawless audio over an exceptional distance. Rigorously tested for reliable performance up to 400 meters (1,312 feet) in open areas, this wireless doorbell keeps your entire property—from the front gate to the back of the house—within reach. Note: the doorbell is plug-free design
【3 Receivers & Battery-Powered】Unlike others that include only one, our system comes with 3 battery-powered receivers(no battery included). More Receivers, More Coverage. No Outlet? No Problem. Place the doorbell anywhere and move it anytime. One-time installation for 4.5 years (1,600+ days*) of worry-free operation
【IP65 Waterproof & Durable】High-performance transmitter with ultra-low power consumption, uses a CR2032 lithium battery that boasts 4.5-year maximum lifespan; no need to worry about frequent battery replacement; IP65 weatherproof rating to withstand the harshest weather (-4 °F to 140 °F)
【60 Melodies, 5 Volume Levels & Memory Function】 Personalize your doorbell with 60 unique ringtones and 5 adjustable volume levels (0–110dB). A noticeable LED light is included to alert individuals with hearing impairments or for situations where audible alerts are not required temporarily. The memory feature saves your settings, and our unique technology ensures they are retained even after a power outage
【36-Month Protection & Effortless Setup】Enjoy a truly hassle-free installation. This wireless doorbell comes pre-connected and is ready to use right out of the box. Set it up in minutes with the optional screw-free method. It is backed by our lifetime technical support and a 36-month protection plan to guard your peace of mind