The Secure Homes Solar Door Chime is a fully wireless unit that allows you to set your doorbell tune from up to 52 chimes. The push button is powered by solar energy, eliminating the hassle of changing batteries every few months. Ensure the doorbell is heard throughout your home by connecting up to 50 door chimes and transmitters.
52 ringtones and 4 steps volume control(25~110dB).
No need to run wires.
Up to 200m operating range in open space.
Up to 100m audible range.
IP44 waterproof transmitter.
Can pair with multiple chimes and transmitters to increase coverage.