ENC Call Noise Cancelling and Immersive Hi-Fi Sound: With the real ENC microphones (Environment Noise Cancelling), the in-ear Bluetooth headphones effectively filter outside noise, you can enjoy your very clear phone conversation with your loved one regardless of any noisy environment. Designed for music lovers, the wireless headphones feature a 13mm speaker for powerful bass, clear mids and impressive treble, good for music and video. New Bluetooth 5.3 and a step pairing: Bluetooth 5.3 technology offers a comprehensive upgrade with a highly sensitive ceramic antenna that provides a more stable connection and faster pairing. Our Bluetooth in-ear headphones are automatically paired with your device as soon as you remove the Bluetooth headphones after the first connection. The free switching function allows you to use a single earbud or both earbuds comfortably. IP7 waterproof and comfortable, stable wear: the wireless Bluetooth headphones with 3 pairs of earplugs (S/M/L), flexible and secure fitting ear hooks ensure a comfortable fit and stay in place even during the toughest workouts. The waterproof and sweat-proof IP7 design is perfect for sports, jogging, swimming, fitness, travel and other outdoor activities, even on rainy days. LED digital display and 48H long running time, non-stop music: the LED digital display on the outside of the case for the bloototh headphones shows the charging status of the case and headphones. With the wireless headphones, you can listen to 8 hours without charging. The lightweight magnetic charging box offers the headset even additional 40 hours of listening pleasure. The charging box has a Type-C quick charging function, which allows the wireless headphones to be fully charged in 1.5 hours. Touch operation and wide compatibility: with just one touch of a finger, music playback or stop, answer or reject an incoming call, you can even use your voice assistant such as Siri, Google Assistant. Any mobile phone or tablet with Bluetooth connection function can be compatible with USB C headphones. The high compatibility of multiple devices makes it easier for you to use.