Apparatus for connecting electronics; communications electronics for computers; hermetically sealed boxes for electronics; photosensitive (exposed) plastics for use in the electronics industry; electric inverters; electrical inverters; electricity inverters; electronic inverters being car door self-locking devices; inverters (electricity); electricity generating solar cells and panels; solar batteries; solar batteries for domestic use; solar batteries for industrial use; solar cells for electricity generation; solar collectors for electricity generation; solar energy collectors for electricity generation; solar energy operating apparatus; solar panels for electricity generation; anti-dust headsets; electric control devices for compressors; camera apparatus; cameras (photography); closed circuit television cameras; closed circuit television surveillance cameras; photographic cameras; video cameras; headphone-microphone combinations; headphones for microphones; microphones; headphone-microphone combinations; headphones; headphones for audio apparatus; headphones for microphones; plug adaptors for headphones; stereo headphones; stereo headphones for personal entertainment use; stereophonic apparatus incorporating headphones for personal use; stereophonic headphones; two-way plugs for headphones; pedometers; shoe-based pedometers