Headphones; Megaphones; Smartglasses; Acoustic alarms; Cell phone cases; Computer keyboards; Devices for wireless radio transmission; Ear phones; Electro-dynamic apparatus for the remote control of signals; Electronic key fobs being remote control apparatus; Notebook computers; Protective covers and cases for tablet computers; Protective covers for smartphones; Rechargeable batteries; Remote circuit breaker control switch operators; Smart rings; Smart watches; Tablet computers; Wireless charg...