Acoustic membranes; Batteries, electric; Cables, electric; Calculating machines; Calculating machines, data processing equipment and computers; 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; Cell phone straps; Chargers for electric batteries; Computer peripheral devices; Ear plugs for divers; Electrical plugs and soc...