Audio amplifiers; 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; Decoders for television sets; Electrical adapters; Lithium ion batteries; Lithium iron phosphate batteries; Power inverters; Power wires; Rechargeable electric batteries