3M Ear Plugs Ultra Fit (340-4007) 3404007

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

●Since it contains iron balls, it will react to metal detectors. ●Ideal for preventing foreign matter from entering. ●Can be washed and used repeatedly. ●These are metal detector response type earplugs with an NRR value of 25dB. ●Cord: Yes (620mm) ●Size: Free ●Weight (g): 4 ●NRR value: 25dB ●JIS T8161 EP-1 (Type 1) compliant product ●Thermoplastic elastomer ●This product is not a product for general consumers, so the display and instruction manual are not written or included in the package for general consumers. Country of origin: America