The Walkers Game Ear Ultra Ear ITC Hearing Enhancers (Pair) are lightweight and comfortable to wear. By using two sound amplifiers, you are provided with ability to more accurately pinpoint direction and distance. These Walkers Hearing Enhancers allow you test out the many uses of hearing enhancement while in the field. The Walkers In-the-Ear Game Ear Ultra Ear ITC carries a mild compression circuit, which assists in muffling muzzle blasts. The Walkers Game Ear Ultra Ear ITC Hearing Enhancers can be used in either ear. It also has an adjustment system that will allow you to modify tone and volume for optimum hearing.