Batteries, electric; Chargers for electric batteries; Mobile power rechargeable battery; Remote control telemetering machines and apparatus; Electro-dynamic apparatus for the remote control of signals; Cameras; Virtual reality headsets; Surveying instruments; Infrared detectors; Motion detectors; Radar detectors; Marine depth finders; Electrical signal attenuators; Transponder location system; Thermal imaging cameras; Self-rescue apparatus, namely, oxygen breathing units; Recorded computer op...