Abstract: A microphone having a push to talk switch button extending through a slot in one side of the microphone and a channel selector switch knob extending through at least one other slot in the microphone. An interlocking structure, having at least one finger extending from an extension member on the push to talk switch button, engages and locks with a plurality of alternating teeth and spaces on the channel selector switch knob. During a transmit mode of operation, the push to talk switch, having the interlocking finger, engages in at least one space between two of the teeth of the channel selector switch knob to prevent rotary movement of the channel selector switch knob and switching of channels during the transmit mode of operation of the microphone.

Abstract: The invention relates to improvements and innovations in a compact embodiment and device, which is a Floatable Tow-Line Holder Storer and suitably coacts in a reel-like performance, when adapted for use in line-storing or for line-towing, as in skiing for boating or otherwise, and as a Safety-Device in police and military rescue-work in marine and field, meeting product safety standards.