A Caucasian hand holding a megaphone on a white background

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Size: 4256px × 2832px
Photo credit: © Michael Flippo / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: alert, alerting, amplifier, amplify, communicate, communication, fingernail, fingers, hand, horn, loud, megaphone, message, noise, noisy, police, power, powerhorn, siren, sound, speaker, system