Outstanding sound quality, immersive enjoyment High-quality diaphragm: Adopts carefully selected high-grade PU composite diaphragm. Able to accurately restore every note, the sound is delicate and clear, with a strong sense of realism, making you feel as if you were in the music scene. Professional tuning: After professional sound tuning, it achieves thick and powerful low frequency, as well as clear and bright middle and high frequency, with three frequency levels, natural and smooth transition, which gives you an excellent listening experience, whether you are listening to pop music, classical music or jazz. Stable connection, low latency Bluetooth 5.3 technology: Equipped with advanced Bluetooth 5.3 version, the connection is stable and fast, and the signal transmission is more efficient. With latency as low as 60ms, it can achieve excellent synchronisation of audio and video when watching videos and playing games, bringing you a smooth multimedia experience. Comfortable to wear, stable and lightweight Ergonomic design: The headset adopts a delicate rounded ergonomic shape, and the single headset weighs only 4g, which is as light as nothing. 108-degree small elevation angle design, together with the silicone ear cap, fits all kinds of ear shapes, which makes the headset comfortable to wear and stable, and you won't feel uncomfortable when using it for a long time, and it's not easy to fall off even in the process of exercising. Long battery life, convenient charging Long-lasting battery life: The headphones can last up to 5 hours in a single use, and with the charging case, the total battery life is up to 25 hours, which meets your needs for a day or even several days of use, so you don't need to charge them frequently. Fast charging: The charging case adopts Type - C interface, which makes charging more convenient and fast, and the charging case can be fully charged in about 1.5 hours.