XP Metal Detectors | BH-01 Bone Conduction Waterproof Headphones | LMS Metal DetectingXP Metal Detectors BH 01 Bone Conduction Headphones The BH 01 bone conduction headset is designed for XP DEUS II Metal Detectors, and is (IP68) certified for submersion up to 20m deep. Bone Conduction Headphone: Using ordinary waterproof headphones underwater, the ear fills with water, and hearing is often lessened. BH 01 sits in front of the ears on the cheekbone and transmits sound to the inner ear directly through vibrations applied to the bones,