คุณลักษณะ

• This is the first earplug in 3M history that can be washed and used repeatedly even though it is a soft foam type.
• For the first time in the history of 3M, sound insulation values are measured and displayed not only when worn with two hands, but also when worn with one hand.
• When mounted with both hands (SNR): 35dB, When mounted with one hand (SNR): 30dB
• Earplugs that can be easily attached by pinching the grip, and do not stain easily because you do not need to touch the tip.
• New sense earplugs for the first time