OPTEK

(Based on Use in Commerce) Telephones; radios; cassette decks; boom boxes; MP3 players; VCR players and recorders; CD players; head phones; clock radios; DVD players; combination DVD/VCR players; televisions; televisions with built-in DVD player; home theater systems comprising stereo amplifiers, DVD players, video cassette recorders and audio speakers; and home audio systems comprising radio receivers, CD players, MP3 players, music cassette recorders and audio speakers