Serious sound protection. Pro Ears Pro Mag Gold Hearing Protection and Amplification Ear Muffs. Pro Ears Pro Mag Gold Hearing Protection and Amplification Ear Muffs. Ideal for serious shooters who want the maximum protection! Includes sound jack for music players and motor sports scanners... get high-fidelity sound and hearing protection in one! With a very high NRR (Noise Reduction Rating) of 30 and the fastest "attack time" in the industry at 1.5 milliseconds, Pro Mag Gold Ear Muffs provide MAXIMUM protection in extreme noise environments such as covered / indoor firing ranges or race day. So, what exactly is "attack time"? It's the time between the unit receiving a noise level spike and the time it takes to react to and compress the sound level to a safe level. That lighting fast attack time is combined with an outstanding recovery time, which is the time it takes to resume normal monitoring after the high sound level subsides to a safe level. With Pro Ears, the attack and recovery time are accomplished without clipping or turning off the system so you hear all the sounds, only at a safe level with excellent clarity! Apple iPod, CD, motor sports scanner or radio compatible using a 3.5 mm mini jack. Enjoy high fidelity sound while protecting your hearing; Ultra-comfy Pro Form Leather ear cushions won't sweat or crack; Great for range masters and NRA shooting instructors; Exclusive DLSC (Dynamic Level Sound Compression) protects you from hearing damaging noise spikes while at the same time, bringing other lower decibel sounds up; On-board 8-bit microprocessor ensures the unit is running right every time; Auto shut-off feature makes sure you have power when you need it; Better than isolation headphones for blocking out unwanted noise while listening to music; Made in the USA!; Weight: 13.5 oz.; NRR: 30; Mfg. Number: GS-DPM; Order today! WARNING: Shipping restrictions apply to the product(s) above under some jurisdictions. Known Age, State and Local shipping restrict