Napier Pro 9 Ear Defenders 0% Tax a call-bird (or decoy) is

a call-bird (or decoy) is placed inside the cage's largest compartment to act as a lure

these insulators come with 10-year product warranty

• Simple to assemble

20mm o/d tube vertical rails

Napier Pro 9 Ear Defenders 0% Tax a call-bird (or decoy) isPro 9 Noise Cancelling Hearing Protection, Exclusive, Patented Breakthrough, Effective Noise Cancelling technology without Batteries, Electronics, valves, or any moving parts! Unique patented sound chamber technology, directs damaging sounds away from the ear canal, where they are dampened, refracted and cancelled. The effect is amazingly clear low level sounds such as speech, but with highly efficient protection from damaging noise levels such as