The SQ1 Expandable Doorbell set includes 1 waterproof button, 1 mini door sensor and2 plugin receivers. The button is 100% waterproof, making it a smart choice for outdoor use. Its chime features 52 different tones at 4 volume levels - making this system totally customizable.
Package includes: 1 waterproof buttons; 1 mini door sensor; 2 plugin chimes; double-sided tape (for install); screws and anchors (for install); battery for button; button brackets; instruction manual
Operating range: 600-1000 ft
Tones: 52 options available
Volume: 4 levels available (25 db to 110 db)
Installation: Double-sided tape or anchors and screws
Easy to install! Just plug in your receivers and mount your button, and you're good to go!