Bluetooth 5.3 Technology
• Uses the latest Bluetooth 5.3 technology to provide a stable and high-speed connection to ensure a seamless, smooth audio experience.
Intelligent noise reduction
• Intelligent noise reduction technology effectively blocks outside noise, allowing you to immerse in a pure sound world and enjoy an immersive audio without interference.
Stereo high fidelity sound quality
• High fidelity stereo sound quality brings immersive listening enjoyment, whether music lovers or gamers can get the ultimate listening experience.
Very long playback time
• With up to 20 hours of playback time for your long music listening or gaming needs, it is ideal for long commutes and game marathons.
Foldable and portable design
• Foldable design with adjustable headband, easy to carry and store, perfect for travel and entertainment use, enjoy high-quality music anytime, anywhere.

If the earbuds fail to turn on, the following reasons may occur:
1) Use after low battery but not charged;
2) The switch needs to be pressed and held (usually 3S), but it is not pressed and pressed, such as the way of tapping, which causes the machine to fail to turn on.