Earphones; Headphones; Wireless headphones; Stereo headphones; Music headphones; In-ear headphones; Personal headphones for sound transmitting apparatuses; Personal headphones for use with sound transmitting systems; Two-way plugs for headphones; Battery packs; Auxiliary battery packs; Power cables; Speakers; Speaker enclosures; Audio speakers; Loud speakers; Wireless speakers; Portable speakers; Personal speakers; Soundbar speakers; Speakers [audio equipment]; Pairable wireless speakers; Wireless audio speakers; Speakers for computers; Audio speakers for home; Auxiliary speakers for mobile phones; Speakers for portable media players.;