Never misplace the transmitter button by wearing it as a necklace. You can also mount it on the wall like a traditional doorbell so it never leaves the classroom.
With an operating range of 500-1,000 feet, SadoTech Doorbells are perfect for large residences, office buildings, classrooms, and more.
Our latest energy conserving technology helps prolong battery life and keeps your device working longer.
SadoTech Doorbells comes with a wide variety of unique doorbell and alert chimes that suits any taste, occasion or holiday.