Megaphones; Spectacles; Audio- and video-receivers; Cases for mobile phones; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Knee pads for workers; Magnifying lenses; Multi-function electronic device for use in children's rooms comprising a sound producing function, temperature gauge and also including a clock and nightlight; Protective face-shields for protective helmets; Protective sports helmet accessori...