AC/DC converters; Batteries; Batteries and battery chargers; Battery chargers; Circuit overload protector devices; Electronic circuit board; Inverters; Inverters for power supply; Lithium ion batteries; Portable power chargers; Power adapters; Power connectors; Power supply connectors and adaptors for use with portable electronic devices; Soundbar speakers; Step down transformers; Step up transformers; Step-up transformers; Transformers; Voltage regulators for electric power; Wireless speakers