1. Using earplugs does not require any skill. Take out two earplugs from the charging case, they will automatically connect, and then enter the phone's Bluetooth settings to pair the earplugs. 2. Music charging anytime, anywhere, convenient to carry 3. Bluetooth earphones are sweat resistant. Ergonomic in ear design. They are not easy to fall off their ears and remain stationary, making them suitable for sports, running, driving, exercising, going to the gym, relaxing, traveling, and more. (Note: The charging case is not waterproof.) 4. Stereo music quality, super strong listening experience. 5. Noise cancellation technology can reduce environmental noise and echo, ensuring that you don't miss any part of the rhythm and enjoy music anytime, anywhere. Suitable as a Christmas gift, birthday/business gift, and public holiday.