Zoom out view of middle aged man on wheelchair demonstrating new smartphone and speaking against huge LED screen during presentation on stage
Zoom in view of female speaker demonstrating features of new smart watch connectable with smartphone during presentation on stage against big LED screen
Middle aged bearded male speaker showing new mobile phone and talking against LED screen with video during presentation
Full body middle aged speaker holding hand in pocket and talking while standing on stage against LED screen with business charts
Speaker is speaking on the stage over the presentation screen in the education seminar
Experienced doctor presenting with digital tablet. Doctor delivering lecture at healthcare conference.
elderly male teacher with headphones is speaking during online education by internet, medium portrait of aged speaker
Middle-aged businessman holding teacup and speaking to mixed-aged colleagues while giving a briefing in the office
Middle aged Businessman having a phone call In Office with big windows
Focused speaker in a casual suit and glasses on stage, gesturing and speaking about bitcoin and cryptocurrencies during an online training in a spacious room near an LED screen with a 3D illustration
Female successful speaker on stage explaining to the audience investments and exchanges in front of an LED screen with 3D bitcoin in a room with spotlights, during a cryptocurrency training