Professional noise cancelling electronic earplugs :Opsmen M20-Mod3 (New Version 2024)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. Humanied 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. Comfortable Wearing :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. Safe Multipurpose Applications:It is suitable for use in high-noise environments such as shooting training, law enforcement, manufacturing and construction, making work comfortable and efficient.