Pro Ears Gold II 30 Electronic Hearing Protection PEG2RMG Earmuff Green Posted on August 19, 2023 by admin New in retail box. Pro Ears Gold II 30. Made in the USA. Uses four (4) AAA batteries (not included). Proprietary DLSC compression technology. Amplifies sounds up to 8x with high fidelity and has a 1.5 millisecond response time.