DESC: No need to shout when you have this versatile, voice-saving electronic teacher bell! Simply dial one of seven unique sounds, tilt the bell, and point it at your students. The crystal-clear sound begins immediately - and gets everyone s attention! Use the No Yell Bell to signal the beginning or end of an activity, to warn children that they re too noisy, or to applaud a job well done. High-quality speaker and volume control allow you to use the bell indoors or out. Sounds include bugle call, applause, tick-tock alarm, hand bell, alarm clock ring, and more. Requires 4 AAA batteries (not included).