Professional caring service:All authentic OPSMEN product have a 90 days no risk money back guarantee and limited lifetime warranty.If you’re unhappy with our products in any way, we will completely refund your purchase. SAFE MULTI-PURPOSE APPLICATION:It is suitable for use in high-noise environments such as shooting training, law enforcement, manufacturing and construction, making work comfortable and efficient. COMFORTABLE WEARING EXPERIENCE:It comes with a silicone Retention cord to prevent loss, and accessories such as earpieces cover and eartips of different sizes are convenient for users with different ear sizes.The design is ergonomic, fits the ears better, and provides more professional noise reduction protection. HUMANIZED DESIGN:There are two modes of indoor and outdoor to adjust the ambientsound. The battery life can be up to 8 hours and there is a low-battery reminder. The portable charging case does not need to replace the battery, which is convenient for charging. PROFESSIONAL NOISE-CANCELING ELECTRONIC EARPLUG:OPSMEN M20 is a more convenient and excellent hearing protection product. It adopts in-ear electronic hearing protection, which can help reduce continuous noise and impulse noise, while suppressing dangerous noises higher than 82 dB, and improve perception and communication in the noisy environments. Imported. ABS.

Best Sellers Rank: See Top 100 in Health & Household. Country of Origin: China. : B0972QTCJ7. Manufacturer: OPSMEN. Date First Available: June 11, 2021. Batteries: 1 Lithium Ion batteries required. (included). Department: unisex-adult. Item model number: M20. Product Dimensions: 3.15 x 2 x 1.38 inches; 4.66 Ounces.