• Better, more-practical hearing protection - lets you hear what you need to hear, blocks noise
• Built-in wide-range microphone picks up low-level sounds: voices, radios/phones or alarms
• Adjustable volume lets you set comfortable level for desired sounds
• Digital micro-processor stops loud noises in milliseconds--before they can cause hearing damage
• Comfort-fit adjustable headband, LED power-on indicator, 2 AA batteries (included)

The main weakness of traditional hearing protection is the elimination of ALL sounds--even the sound you need or want to hear: a co-worker's voice, your cell phone ringing, an alarm sounding, your favorite radio station. That means constantly putting-on or removing your headset or earmuffs until you eventually just leave them off. Now, with advancements in digital microchip sound-filtering technology you're able to hear and actually AMPLIFY sounds you want to hear but hearing-damaging equipment or tool noise is filtered-out INSTANTLY (< .400 second). Rugged ABS construction, easy-reach volume knob, LED power-on indicator, padded, adjustable-fit headband for all-day comfort. Powered for hours by 2 AA batteries (included). Works with most rechargeable batteries. One-year warranty.