Apparatus for recording, transmission or reproduction of sound; Audio headphones; Audio receivers; Batteries and battery chargers; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players and personal digital assistants; Digital audio players; Dye-sublimation printers; Ear phones; Loudspeakers, headphones, micropho...