CallToU Waterproof Push Button 1000+ Feet Classroom Home Office Business Store Color:2 Button+1 Battery Receiver It alerts you with vibrations

It alerts you with vibrations and peace sound when your kids or elderly need you

by the lanyard

This alarm can remind us that the child is awake and detect that the child is in a in dangerous place

car alarm or entrances

you can set the alert to repeat multiple times instead of the usual single beep

CallToU Waterproof Push Button 1000+ Feet Classroom Home Office Business Store Color:2 Button+1 Battery Receiver It alerts you with vibrationsMultifunctional Battery Doorbell: This wireless portable doorbell is very versatile, you can use it as an ordinary doorbell for home, classroom, office, business; you can also use it as a call bell for the elderly, children, patients, disabled, pregnant women and other family members who need help. Portable & Indoor & Outdoor: This portable doorbell is powered by 3 AAA batteries, it can still work properly for you when the power is off or there is no