Batteries, cells, rechargeable batteries, solar batteries, battery cases, battery boxes, electric chargers, AC adapters; public-address system and instruments, radio communication machines and apparatus, broadcasting machinery and equipment; Global Positioning System apparatus, instruments for automotive navigation system, antennas, stands and racks for telecommunication machines and apparatus, transceivers, transceivers for automotive, machinery and equipment for marine communication, marine transceivers, VHF aircraft transceivers, portable communication apparatus, high-frequency transceivers, belt clips for portable electric or electronic machines and apparatus, outer cases for portable electric or electronic machines and apparatus, external microphones and speakers for transceivers, headset microphones, wireless transmitters, remote control units, wireless carrier repeaters, anti-interference devices, optical communication equipment, network communication apparatus, radar apparatus, direction finding equipment, mobile phones, wireless phones, voice transmitting apparatus, wireless receivers, optical communication modems, frequency converters, fixed single channel communication apparatus; multichannel communication apparatus, ultra red ray transmitters, voice signal transmitters, electronic signal transmitters, TV sets, radio tuners, radio receivers, radio transmitters, liquid crystal displays, image data transmission apparatus, image data receiving apparatus, webcams, cables for image data transfer, image monitors, movie data transmission device, movie data receiving apparatus, repeater for image data, repeater for movie data, movie data recording apparatus, processing apparatus for movie data, movie data reproduction apparatus; audio amplifiers, main amplifiers, pre-amplifiers, pre-main amplifiers, phono equalizer amplifiers, transformers, loud speakers, audio receivers, audio disc players, compact disc players (CD players), record players, digital versatile disc players (DVD players), audio disc recorders, compact disc recorders (CD recorders), video disc recorders, digital versatile disc recorders (DVD recorders), Blu-ray disc recorders (BD recorders), Blu-ray disc players (BD players), direct stream digital recorders (DSD recorders), direct stream digital players (DSD players), semi-conductor memory players, handy loud speakers, sound recording machines and apparatus, audio data reproduction apparatus, audio mixers, audio mixers for disc jockey, audio equalizers, audio teaching apparatus, Karaoke apparatus, headphones, earphones, microphones, wireless microphones, rechargeable wireless microphones, digital microphones, video projectors, video reproduction apparatus, video display apparatus for Karaoke apparatus, sound recorded compact discs, video recorded digital video discs, sound recorded and/or video recorded flash memories, video camera recorders, digital-to-analog converters, analog-to-digital converters, personal stereo apparatus, mobile digital media players, media headphone stereo players, USB flash memories, digital voice recorders, electric wires and cables, cables for audio apparatus, connectors for electric wires and cables, fiber-optic cables, connecting sleeves for cables, speaker spikes, floor protectors for speaker spikes, floor insulators for speaker spikes, isolators, variable audio frequency educational machinery and equipment, audio and visual educational machinery and equipment, visual and audio registered photorecorded discs, visual and audio registered integrated circuit media, visual and audio registered Universal Serial Bus drives, digital-to-digital converters, USB cables, digital-to-analog converters for High-resolution audio; digital-to-analog converters corresponding to USB connection, headphone amplifiers for High-resolution audio, hard disc drives for personal computer audio, network media players (network players), network-attached storage (NAS), cables for balanced audio.