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[No Ear Clogging & 4.6g Ultra Lightweight & Safe Fit] The canal type earphones do not feel claustrophobic, there is no vibration or pressure sensation of bone conduction earphones, and there is no interference from the earphone neckband shaped like bone conduction earphones, so FUANNA Bluetooth earphones do not block your ears, have less burden on your eardrums, are less likely to sweat, and do not get stuffy in your ear canals. A new sense of ``nagara'' that does not block out the surrounding environmental sounds is for those who want to enjoy their favorite music in safety and comfort while being able to catch the sounds that cannot be missed, such as approaching cars, station announcements, incoming phone calls, and important conversations. The one-sided bluetooth earphone weighs only 4.6, so you won't get tired even if you use it for a long time. Ergonomic design provides a secure fit, so you don't have to worry about your wireless earbuds falling out while exercising. [Industry-leading Bluetooth 5.3+EDR & Hi-Fi high sound quality and instant pairing] The air conduction earphones use industry-leading Bluetooth 5.3+EDR, and communication speed, communication distance, and stability have been dramatically improved. At the same time, power consumption is lower, data transmission is faster, and anti-interference performance is stronger. Achieving a delay rate close to zero ! The built-in high-quality audio chip captures the details of music and delivers clear highs and moderate bass-rich sound. In addition, with the innovative earphone Bluetooth pairing technology, after pairing with your smartphone for the first time, when you use it again, you can automatically and instantly connect by simply opening the charging case cover. Another great feature is that when you store the earphones in the case, they automatically turn off and start charging. [ENC Noise Cancelling & Clear Hands-Free Calls] The Bluetooth earphones have a built-in directional high-sensitivity microphone and support hands-free calls, and are equipped with noise canceling technology that concentrates the necessary sound and blocks out surrounding sounds, so you can hear the sound clearly during calls. Even in a noisy environment, only the spoken voice can be clearly transmitted, enabling high-quality two-way communication in situations such as voice calls, remote conferences, online classes, telework, Zoom, Skype, etc. [ENC Noise Cancelling & Clear Hands-Free Calls] The Bluetooth earphones have a built-in directional high-sensitivity microphone and support hands-free calls, and are equipped with noise canceling technology that concentrates the necessary sound and blocks out surrounding sounds, so you can hear the sound clearly during calls. Even in a noisy environment, only the spoken voice can be clearly transmitted, enabling high-quality two-way communication in situations such as voice calls, remote conferences, online classes, telework, Zoom, Skype, etc. [25 Hours of