hand holding megaphone chalkboard background |
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navigate by keyword : activism advertise advocacy alert alertness amplify announcement attention audio blackboard broadcast campaign chalk chalkboard command communication concept dissemination drawing education engagement generated hand hold influence information instruct lecture lines loud marketing megaphone message noise power presentation promotion protest public rally school shout signal sound speak speaker voice volume |
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A hand holding a megaphone against a chalkboard background with drawn sound lines illustrating audio amplification. AI generated |
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