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Rings a bell and announces each class period out loud. A simple replacement for the old speaking clock. Keep every class on schedule with Bell Schedule & Class Alarms. This extension rings a bell and announces each period out loud, right on time, based on the schedule you set. Set up rotating cycle days, silence the bells for the rest of the day with one click, or choose from several bell sounds and voices to match your classroom. Perfect for teachers, schools, and anyone replacing an old speaking clock or PA bell system.
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