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【Cautions for using electrical products】
When using electrical appliances, please note that the voltage is different from that of Japan, which may cause malfunctions.
Since the plug type is Japan type(A or B type), please check the voltage and use a transformer.
Please note that a transformer is different from a conversion adapter.
We are not responsible for malfunctions caused by use without a transformer.
【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.
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[2025 Industry-New Model: Ultimate Earplugs Made with Heart] Conventional earplugs for sleep can sometimes fit poorly or leak noise even when worn. To solve these problems, OULEKE ear protectors, developed under the supervision of experts, have undergone 18 months of research and testing to finally create the ultimate earplugs! OULEKE ear protectors feature a proprietary filter with a 55dB SNR rating, and the earplugs feature a special three-layer silicone construction. Designed to provide a certain level of sound pressure reduction, they won't cause ear fatigue or discomfort when worn. They're a "sleeping shield for sound-sensitive individuals" that contributes to hearing protection.
