STEREOPHONIC SOUND AMPLIFIER WORN ON

Brand	Owner (click to sort)	Address	Description
ACTION EAR	Silver Creek Nurseries, Inc.	1909 Silver Creek Road P.O. Box 1988 Manitowoc WI 542211988	STEREOPHONIC SOUND AMPLIFIER WORN ON THE HEAD OF THE USER;
ACTIONEAR	Silver Creek Nurseries, Inc.	1909 Silver Creek Road P.O. Box 1988 Manitowoc WI 542211988	stereophonic sound amplifier worn on the head of the user;ACTION EAR;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A sound focus speaker adopting a gas-filled sound lens enhances efficiency of transferring sound from a source to target area and of protecting a spread of transferred sound. The sound focus speaker includes a gas-filled sound lens, sound sources for generating sound and a sound-absorption room for surrounding the sound lens and the sound sources. Sound emitted from the sound focus speaker is focused at specific distance to make a focus point and not spread to the outer of the focus point from forming a sound area.