Business management

Telecommunications

Audio speakers; Audio speakers for automobiles; Audio speakers for home; Car speaker components; Car speakers; Monitor speakers; Personal stereo speaker apparatus; Speakers for computers; Speakers for record players; Speakers for tape players; Warning loud speaker apparatus for mounting on the roof of emergency services vehicles; Control boxes for headphones; Covers for headphones; Headphone amplifiers; Headphone consoles; Headphone-microphone combinations; Headphones; Headphones for audio apparatus; Headphones for microphones; Plug adaptors for headphones; Stereo headphones; Stereo headphones for personal entertainment use; Stereophonic apparatus incorporating headphones for personal use; Stereophonic headphones; Two-way plugs for headphones; Two-way wireless communication systems; Wireless apparatus; Wireless communication apparatus; Wireless high frequency transmission instruments; Wireless instruments; Wireless pulse transmitters; Wireless receiving apparatus; Wireless telegraphy apparatus; Battery cables; Electric battery chargers; Electrical apparatus for nautical use for detecting battery voltage; Power supply devices for battery chargers; Earphones (other than hearing aids for the deaf); Earphones for radios; Earphones for recording apparatus; Cases adapted for batteries; Cases adapted for cells; Cases adapted for computers; Cases adapted for mobile phones; Mobile phone cases