The Walkers Game Ear HD Power Elite Hearing Enhancer (WGE-XGE4B) delivers 4 channel, 20 bit audio processing for unparalleled sound quality. The Walkers Game Ear HD Power Elite operates on an entirely new platform that makes it 20% smaller than the original game ear. Walkers Hearing Enhancers provides its user hearing enhancement while hunting and hearing protection while shooting. With the Walkers Game Ear HD Power Elite, you'll have the option of four program settings: General, Crowds, Nature and Power Boost. This Walkers HD Hearing Enhancer also offers faster sound activated compression and automatic feedback control.