Pressure-balancing valve equalizes internal and external air pressure during flights

including dust

so you're not tethered to a charger between sessions

Rugged & Assembly Free- Military grade construction

Target ID Scale: 0-99 digital display

Gray Ghost Amphibian II Waterproof Headphones - Nokta glass-fiber-composite Pressure-balancing valve equalizes internal andThe Gray Ghost Amphibian II headphones deliver crystal clear audio up to 30 feet underwater without the muffled sound that plagues most waterproof headphones. DetectorPro's unique sealed sound box design protects the audio components while maintaining the full range of tones you need to identify targets accurately. Key Features True waterproof performance IP68 rated connector submersible to 30+ feet Superior sound quality Sealed sound box eliminates