Rex Specs Ear Pro by Zeteo Tech was developed specifically to protect military working dogs from temporary and permanent hearing loss that can arise from noise exposure. Proven to reduce a full spectrum of environmental noise by 50% Rex Specs Ear Pro is the industry standard for canine hearing protection. Whether on a mission, at the range, on a motorcycle, or at an AC/DC concert — Rex Specs Ear Pro will protect your dog’s ears and can limit your dog’s hearing damage over time.