A medium shot of a renewable energy engineer in a field of wind turbines, answering a phone call on a sunny day

renewable energy clean phone call field wind turbines engineer safety white helmet reflective vest importance sunny caucasian greenery sustainability communication conversation talking mobile telephone speak ringing cellphone smartphone mobile device handheld wireless portable touchscreen cellular mobile communication mobile technology phone conversation speaking on the smartphone cellphone chat smartphone talk communicating on the phone cellphone discussion on the phone telephone conversation cellphone interaction wind turbines male man young