African american workman stands at construction site, looks in work papers and speaks via portable radio transmitter
Slow Motion African american builder stands at construction site, looks in work papers and speaks via portable radio transmitter
African american workman in hard hat, goggles and medical protective face mask stands at construction site and talks via portable radio transmitter
Repairman with construction documentation and with portable radio transmitter under overpass. Builder in hard hat with radio at construction site
Repairman with construction documentation and with portable radio transmitter under overpass. Builder in hard hat with design drawings at construction site
African american builder in hard hat, goggles and medical protective mask stands at construction site and talks via portable radio transmitter
Workman at heat power plant communicates via radio station. Worker with portable radio transmitter on electric power station
Worker with portable radio transmitter on electric power station. Workman at heat power plant communicates via radio station
Workman at heat power plant communicates via radio station. Worker with portable radio transmitter on electric power station
Workman with portable radio transmitter on electric power station. Worker at heat power plant communicates via radio station
Afro-american worker in hard hat, goggles and medical protective mask stands at project site and speaks via portable radio transmitter. Cinema 4K 60fps video
Railway employee on railway line near freight station speaks via portable radio transmitter, worker communicates via radio station. Railroader with portable radio transmitter near goods trains