3D spectacles; Earphones; Loudspeakers; Smartwatches; Spectacles; Subwoofers; Acoustic coupling devices; Acoustic membranes; Anti-glare glasses; Audio-receivers and video-receivers; Cabinets for loudspeakers; Downloadable computer software for application and database integration; Downloadable computer software for controlling the operation of audio and video devices; Laser rangefinders; Motorcycle helmets; Ski goggles; Smart glasses; Smart rings; Vibration dampeners for electronic audio equipment; Virtual reality headsets