1.[Positioning Ear Hanger Style]Wearing it is lightweight and comfortable, and wearing it for a long time does not tire the ears. When listening to music, it can fully perceive external information and better maintain the of the ear canal. Wear steadily during exercise and won't fall off. 2.[Bluetooth 5.4 Chip]The ly upgraded low-power wireless 5.4 chip provides fast connection, stable signal, lower latency, and more stable connection for listening to music, making phone calls, and playing games. 3.[Directional Sound Transmission Technology]Whirlwind directional sound transmission ensures efficient sound transmission into the ear, effectively reducing 99% of sound leakage and making calls clearer. 4.[Intelligent noise reduction]Adopting advanced noise reduction technology, effectively suppressing environmental noise, making you clearer during calls, able to communicate clearly in noisy environments, and better picking up speaking sounds. 5.[Wide sound field]All three frequency bands are tuned, low frequencies are depth and shock, clear mid frequency level, and clear and delicate high frequencies, providing you with a full and three-dimensional listening experience.