This expandable doorbell set comes with a battery-free button and a plugin receiver. Our line of sustainable wireless doorbells with transmitter buttons that operates under the use of body heat or kinetic energy. It uses only 10mW of energy - which helps you cut both your costs and your carbon footprint. Add as many extra buttons or chimes as you’d like as long as it's from the same Pushpoint Series.
Operating range: 450 ft.
Weight: 6.4 oz
Tones: 32 options available
Volume: 4 levels available (50 dB to 80 dB)
Install method: double-sided tape
Material: ABS Plastic