Get students' attention without raising your voice Alert students to the beginning or end of an activity, inappropriate noise levels or a job well done without raising your voice. High-quality speaker and volume control ensure that the whole class can hear. Dial features 7 different sounds, including bugle call, applause, tick-tock alarm, hand bell, alarm clock ring and more. Requires 4 AAA batteries (not included). Best for use in pre-k to grade 5 classrooms. Educational Insights(R) No Yell Bell(R) Classroom Attention-Getter, 10in. x 4in., Gold/Black, Pre-K - Grade 5 is one of many Call Bells & Counters available through Office Depot. Made by Educational Insights.