No need to shout when you have this teacher bell. Simply dial one of seven unique sounds, tilt the bell, and point it at your students. 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. The No Yell Bell is a great way to prevent unnecessary strain on your voice and quickly get the attention of your class. At SmileMakers, we offer an affordable selection of classroom supplies that make classroom management a little bit easier.