Male engineer listening to the radio while nodding his head and puts it down, handheld closeup

male engineer listen radio nodding head puts it down putting it down handheld closeup walkie talkie handheld transceiver electric substation hard hat sunglasses fence mesh wire on duty safety reflective vest sunglass technician electrician electrical person worker power line employee career safety gear hazardous area substation electrician man repairman maintenance tower guy grid construction energy helmet service power plant communication work job industrial professional electricity equipment