iias earphone type ear plugs for a good night's sleep relax noise relief Inside the plane good sleep quiet work plane study repeated use Washable 6

【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.

Noise countermeasures: Noise reduction (SNR) value of up to 26dB manages and suppresses annoying noises to a comfortable volume.(Please note: It is not a complete sound insulation, but you can hear necessary sounds such as alarms and loud calls, and it has a noise reduction effect, so please use it with confidence.) [Comes with storage case & wide range of uses] These earplugs are compact and also come with a storage box, so you can easily carry them wherever you go, such as when traveling or business trip.It can be used freely in various situations such as deep sleep, traveling, studying, reading, flying, working, etc. [Washable & Ear Plugs for Men and Women] Made of soft silicone, they are gentle on the skin and have antibacterial properties, are washable, and can be used repeatedly.Comfortable to wear, your ears won't hurt even if you wear them for a long time.In addition, earplugs do not distinguish between left and right ears, so they can be used by both men and women. [Package contents & after-sales service] Ear plugs x 1 set, ear tips (S/M/L) 2 sets each of 3 sizes, storage case x 1.If you have any problems, please contact our store at any time by going to "Order History" → "Contact Seller" (★Product exchange/return service★, etc.)