Apparatus for wireless transmission of acoustic information; Battery boxes; Battery charge devices; Battery chargers; Battery packs; Charging appliances for rechargeable equipment; Computer keyboards; Computer mouse; Electric control panels; Electrical apparatus, namely, charging stations for charging electric vehicles; High-frequency switching power supplies; Inverters for power supply; Laptop computers; Light emitting diode (LED) displays; Power adapters; Rechargeable batteries; USB chargin...