SCHOOL BELL

RAVDEV

About this app

This application was made to remote school and factory bells
and the other is under the Hade Tech brand.
via Bluetooth connection. this application will operate
bell, to play mp3, set sound schedule, date and time.
Please download the application, connect Bluetooth with
Android cellphone, once connected, please set it up
the clock according to the code on your cellphone, then set the schedule
according to your wishes, after everything is set up,
restart the bell device. and the bell will ring automatically
automatically according to what we set
Thank you for using Hadetech bell