【Ear-Hook Type】 Lightweight ear-hook headphones that hang from the back of the head to the ears, comfortable even for long periods of wear. They also have a folding function, making them easy to fold up and convenient to carry. When you're not using the earphones temporarily, you can put them on a desk or hang them around your neck, making them easy to carry and store. 【Bluetooth 5.4 Connection】 Equipped with a Bluetooth 5.4 chip, wireless technology has further evolved, offering power saving, more stable connections, and improved communication. You can easily enjoy music within 10 meters (without obstacles) while doing housework or exercising. Widely compatible with iPhone/iOS/Android smartphones, tablets, etc. 【High-Quality Sound & Deep Bass】 Soft ear cushions wrap around your ears, are gentle on your ears, block out external noise, and minimize sound leakage. You can enjoy wonderful music anytime with high-quality sound. The sound is well-balanced from low to high frequencies, with excellent low-frequency performance and sound quality, allowing for the reproduction of original sounds. 【The Harmony of "Immersion and Clarity" Played by a 27mm Large Driver】 Equipped with a 27mm large dynamic driver, pursuing sound quality as earphones. It reproduces deep, thick bass, clear, transparent high frequencies, and natural mid-range frequencies in a balanced manner. Delivers the fine nuances of music and the realism of video with clear sound quality close to the original sound. Open Earphones bluetooth bone conduction physical button/sound leakage prevention/multi-point/IPX6 waterproof