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【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. [New music experience ear cuff type earphones] In 2023, Keypal will introduce Bluetooth earphones that can be clipped into the ear and worn like an accessory, adding a new idea of ``not blocking your ears'' to cable-less completely wireless earphones. Masu. The ear cuff has a unique structure that does not block your ears, so you can hear surrounding sounds. This allows you to respond to courier deliveries at home, and to keep an eye on the safety of your surroundings when you're out and about. [Excellent comfort & weighs only 5g] These are air conduction earphones. There is no feeling of obstruction from canal earphones, no vibration or pressure from bone conduction earphones, and the neckband of the earphones, which is shaped like bone conduction earphones and Bluetooth, gets in the way. The Bluetooth earphone on one side weighs only 3.8g, so it's so comfortable that you'll forget you're wearing it. Stay comfortable all day long, even during intensive workouts. Recommended for people who have difficulty fitting regular Bluetooth earphones into their ear canals! The ear clip design goes great with glasses! [Industry's most advanced Bluetooth 5.3 & automatic pairing & compact] Earphones are equipped with Bluetooth 5.3 technology chip, which increases communication speed by 2 times, communication range by 4 times, and communication capacity by 8 times. You can enjoy stable cordless music, and at the same time, the broadcast communication capacity is doubled, making it truly possible for audio signals to be transmitted synchronously to the earphones. Provides fast and stable transmission with 10m Bluetooth range. With innovative pairing technology, after pairing to your smartphone for the first time, when you use it again, you can automatically pair by simply removing the earphones from the charging case. The charging case has a compact and pop design, and is small enough to easily fit in your bag or pocket. [Microphone for calls & up to 30 hours of playback & Type-C fast charging] Completely wireless earphones have a small high-performance microphone, beamforming technology, and excellent noise canceling performance, making it difficult to pick up surrounding noise and focusing only on your own