The blackboard with the drawn evolution of phones isolated on a white background

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Size: 4961px × 3508px
Photo credit: © Panther Media / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: aerial, ancient, background, blackboard, board, button, call, cellphone, chalk, classroom, college, communication, communicator, conversation, device, dial, electronic, event, evolution, future, history, illustration, invent, invention, learn, listen, microphone, mobile, modern, modernization, object, phone, progress, radio, school, science, screen, smart, smartphone, story, technology, telephone, tube, voice, white, wire