Backpacks especially adapted for holding laptops and notebook computers; batteries and battery chargers; camera tripods; cell phone cases; cell phone straps; computer bags; consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; converters; headphones; monopods used to take photographs by positioning a s...