Amplifiers; Apparatus for transmission of communication; Audio- and video-receivers; Batteries, electric; Cabinets for loudspeakers; Cameras; Cell phone cases; Cell phone covers; Cell phone straps; Computer peripheral devices; Computers; Data processing apparatus; Data processing equipment, namely, couplers; Earphones; Electric navigational instruments; Hands-free kits for phones; Headphones; Image intensifiers; Navigation apparatus for vehicles; Portable telephones; Radios; Smartwatches; Vid...