【Cutting-Edge Technology: Bluetooth 5.3 + EDR, High Sound Quality & Enhanced Bass】 With industry-leading Bluetooth 5.3 + EDR technology, communication speed is doubled, communication range is quadrupled, and communication capacity is increased eightfold compared to previous versions, providing a stable, wireless music experience. Furthermore, power consumption is low, data transfer is fast, and interference prevention performance is enhanced. The delay rate is close to "zero." Equipped with 13mm diameter speakers and scientific sound adjustments to reduce sound leakage, the bass is enhanced. Mid and high frequencies are also reproduced in a balanced manner, allowing you to enjoy immersive, high-quality sound. Bluetooth pairing technology allows for automatic pairing after the first connection, enabling instant connection. 【ENC Noise Cancellation & 20 Hours of Continuous Playback & Type-C Fast Charging】 These Bluetooth earphones, equipped with a directional high-sensitivity microphone, feature noise-canceling functionality, accurately capturing necessary sounds and blocking out surrounding noise. This allows for clear calls even in noisy environments, enabling high-quality communication for remote meetings, online classes, telework, Zoom, Skype, and more. These air conduction earphones utilize unique power-saving technology, allowing for 8 hours of continuous music playback at 80% volume, extendable to 20 hours with the charging case. The USB-C charging port significantly improves charging speed compared to traditional USB, allowing for a full charge in approximately 1 hour. You can enjoy music without any problems during outdoor activities such as cycling and mountain climbing. 【Comfortable Fit Without Blocking Ears & Ergonomic Design】 These ear clip earphones adopt a flexible and soft earring design, based on ergonomics. They fit securely in the ears even during exercise, without falling out even when shaking your head, eliminating the worry of dropping them. The open-ear design of these ear clip earphones eliminates the vibrations and pressure of bone conduction earphones, reducing the burden on the eardrum, making them comfortable for long-term use. Furthermore, the ear hooks are adjustable to fit the shape of your ears, providing an excellent fit. You can enjoy music without blocking out surrounding sounds, allowing you to hear approaching cars and important conversations. ※※Important Notes※※ ・This is a private sale of personal items. Manufacturer warranty is not applicable. In the event of any defects, please contact us "before leaving feedback." ・No pets, no smokers, and stored at home.