Acoustic couplers; acoustic membranes; alarm monitoring systems; apparatus for wireless transmission of acoustic information; audio-receivers and video-receivers; audio amplifiers; audio headphones; audio mixers; audio speakers; audio transmitter units; audio equipment for vehicles, namely, loud speakers for automotive audio systems; cameras; devices for wireless radio transmission; digital audio players; earbuds; earphones; earphones and headphones; electric navigational instruments; global positioning system (GPS); headphones; headphones including attached lanyard; headsets for mobile telephones; headsets for use with computers; headsets for cellular or mobile phones; headsets for telephones; horns for loudspeakers; loud speakers; loudspeaker cabinets; loudspeaker systems; loudspeakers; loudspeakers with built in amplifiers; loudspeakers, headphones, microphones and CD players; microscopes; music headphones; pedometers; photocopiers; pickups; portable media players; protective covers and cases for cell phones, laptops and portable media players; radios; scanners; smart watches; smartphones; smartwatches; solar batteries; sound transmitting apparatus; speakerphones; stereo headphones; time clocks; video-telephones; wireless broadband radios; wireless cellular phone headsets; wireless computer peripherals; wireless controllers to monitor and control the functioning of other electronic devices; wireless indoor and outdoor speakers; wireless transmitters and receivers; audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; cases for music, audio and related electronic equipment, namely, cases for audio tuners, audio receivers, amplifiers, tape players, compact disc players, MP3 controllers/players, audio mixers, audio speakers in the nature of music studio monitors, microphones, audio speakers, compact discs, audio tapes, portable computers, antennas, phonographic record players, audio recording equipment, and the cables associated with all of the foregoing equipment; communications headsets for use with communication radios, intercom systems, or other communications network transceivers; computer hardware and software used for the control of voice controlled information and communication devices; telephone headsets; wireless headsets for smartphones