School Bell

Do you want to finish the course in advance ? Set the timer or immediately trigger the bell, your teacher and other students will think that the end of the course arrived. Another joke: discreetly install the application on the phone of a friend and set the timer so that it fires. The sound perfectly imitates the bell of a school. Ideal for pranks

• Press the button to start the timer or trigger the buzzer.
• Set the timer.
• Change the background color and the LEDs