3M EAR Classic Small 3M Classic Small Ear Plugs (5 Pairs)

【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.

A small type is now available in the long standard earplugs "Classic". The material is PVC foam. NRR=29dB By using finer-grained materials and slightly lowering the volume, we have achieved a more comfortable fit and high sound insulation performance (29dB). Cylindrical earplugs provide a certain level of sound insulation performance without having to be inserted deep into the ear, making them ideal for use by unspecified people. We will distribute a PDF version of the Japanese simple manual to purchasers by email upon request, so please contact us from your Amazon account. I will attach the PDF file to the reply email. We will distribute the PDF version of the Japanese simple manual to the purchaser by email upon request, so please contact us from your Amazon account. I will attach the PDF file to the reply email.