Speaker
Low angle view of electric lamp against blue sky
Megaphone on mosque against buildings at dusk
Business conference event or corporate presentation
Midsection of mother combing daughters hair
Hoping to fill the drink.
Rear view of students sitting in classroom
Businesswoman explaining to colleagues by whiteboard seen through glass
Low angle view of smiling woman holding blue sky
Portrait of smiling businesswoman holding microphone while standing against projection screen
Woman holding megaphone while walking on footpath during sunny day
Male teacher erasing text on whiteboard
Rear view of people sitting on chairs during conference
Smiling female listening music on speaker while sitting with friends on terrace at party
Lawyers discussing in meeting at library
Close-up of microphone on stage
Business people looking at colleague writing on adhesive note stuck to whiteboard in office
Wood cut podium, decorative christmas tree and pine cones on a pink background vertical view
Professional microphone and blank sheet of paper
Low angle view of street light against clear blue sky
Smiling young woman solving mathematical formula on whiteboard at home
School gym with basketball board and basket. basketball hoop in the high school gym
Female entrepreneur giving presentation on solar toy car through conference call in office
Male teacher talking to female student standing in classroom
Close-up of person on chair with megaphone
Midsection of speaker giving speech
Empty chairs and tables in room
Businesspeople discussing while looking at whiteboard in office
Businesswomen discussing with colleagues in creative office
Young businesswoman with colleagues in meeting room
Male teacher teaching multi-ethnic students in classroom
Boy drawing on whiteboard
Female entrepreneurs discussing with colleagues in creative office
Female architect doing multi-tasking with smart phone and laptop while working at office
Male and female business colleagues looking at tv screen with video conference display in coworking office
Low section of man holding woman
Low angle view of megaphones on bamboo against sky
Female colleagues looking at businesswoman drawing on whiteboard during meeting in board room
Scenic view of dramatic sky during sunset
Man sitting with megaphone on chair
Group of people in traditional clothing
Close-up of microphone in conference room
Low angle view of communications tower against sky
Portrait of cheerful fans enjoying against clear sky
Cheerful woman enjoying music on speaker while sitting with friends on terrace at party
Man having presentation during business meeting
Live broadcasting of a podcast or online radio talk show from a studio
Anonymous young male doctors in respiratory masks and uniforms working on desktop computer in clinic
Low angle view of street light against sky
Background of jets and splashes of a fountain in the park.
Rock beards
Multi-ethnic friends dancing together in music festival
Cropped hand touching speaker
Computer programmer explaining adhesive note to colleagues in office
Low angle view of megaphone and electricity pylon against sky
Girl and boy writing on whiteboard while solving mathematics in classroom
Smiling female entrepreneur giving presentation in office
Man looking through window sitting by computer working at home
Confident businessman explaining strategy to colleagues in board room during meeting
Man in office writing chart on wall
Vintage radio on table against wall
Lawyers giving presentation to coworkers seen through glass in board room
Male hacker discussing business ideas with investors in office
Empty chairs arranged in row
Low angle view of megaphone on the beach against sky
Close-up of mans hand showing pins through fence
Thoughtful businessman holding disposable cup while sitting at creative office
Close-up of hand drawing on whiteboard
Portrait of young man working at table
People with arms raised in lecture hall during seminar
Cropped hands of journalists holding microphones in front of man
Smiling young woman standing by text over adhesive notes on whiteboard
Male programmer explaining adhesive note to female colleague in office
Soul-soothing milk and coffee
Midsection of businessman giving presentation to colleagues in office
Smiling teacher writing on whiteboard in language class
Minimal product display. white geometric podium. scene stage showcase for product, premium mock up
Side view of young woman using board
Interior of home
Metallic structure against blue sky
Confident multi-ethnic technicians discussing project over whiteboard at creative office
Folded red plastic chairs on a temporary tribune. selective focus
Side view of businesswoman writing and explaining to colleagues at office
Midsection of business people working at desk in office
Group of people at music concert
Low angle view of megaphones against sky
Close-up of microphone in event
Low angle view of historical building against sky
Female professional giving training to colleagues in conference centre
Rear view of people during seminar
Close-up of young businessman writing on glass while planning in meeting at board room
Low angle view of telephone pole against clear blue sky
Portrait of man with arms outstretched
Senior businesswoman giving presentation at office
Background textures of old emerald-colored wooden boards used for background. old wooden boards
Hand of male professional writing on whiteboard at office
Senior businessman brainstorming, drawing formulas on window pane
Full length of friends dancing on sidewalk by shutter in city
Microphone and empty seats at convention centre
Full frame shot of chairs in stadium
Rear view of students studying in classroom with blank whiteboard