True open-back headphones: The YX39 headphones feature a completely open-back design, and the earbuds rest gently and firmly on the top of your ears. Open-back earbuds are generally lighter and more breathable than in-ear headphones, making them more comfortable to wear for long periods of time. (Please clean the headphones after use to extend their life) Be aware of your surroundings: Since open-back headphones do not enter your ears, they allow you to be more aware of your surroundings. When you listen to music while running or cycling outdoors, you can still hear approaching cars or other potential hazards and spend your day safely. Standby working time is about 7 hours after a full charge: The Bluetooth headphones can last for 7 hours after a single full charge, and the charging box can charge the headphones once more, with a combined battery life of about 25 hours. In addition, the smart LED power display in the box shows the remaining power in real time, letting you know if the charging box or running headphones need to be charged. No need to worry about any power issues. Powerful stereo sound: Equipped with a 13mm vibration diaphragm speaker driver, which is 3 times larger than other wireless headphones, the headphones provide pure balanced audio and clarity output for all music types. Clear, deep, resonant bass, finely tuned sound signature provides immersive sound, putting you at the center of the stage. Latest Bluetooth 5.4 Technology: The Bluetooth headset adopts the latest Bluetooth 5.4 technology, ensuring a fast and stable connection. You can enjoy a low-latency listening experience, with audio and video perfectly synchronized without any delay.
