Rechargeable batteries; Lithium ion batteries; Electric batteries; Portable power chargers; Electrical storage batteries; Lithium phosphate batteries; Lithium iron phosphate batteries; Batteries; Batteries and battery chargers; Wireless earbuds; Electrical cells and batteries; Ultracapacitors for energy storage; Battery packs; Earphones and headphones; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, a...