[ Audio- and video-receivers; Batteries, electric; Battery chargers; Cabinets for loudspeakers; Cases for smartphones; Computer peripheral devices; Covers for smartphones; Ear plugs for divers; Earphones; ] Headphones [ ; Laptop computers; Loudspeakers; Megaphones; Microphones; Portable media players; Rechargeable electric batteries; Sound transmitting apparatus; Televisions; Wireless cellular phone headsets; Wireless telephony apparatus; Wireless transmitters and receivers ]