Description:Bluedio T4S active noise cancelling Bluetooth headphones are fashionable accessories for music lovers. The headset does away background noise and it is tuned meticulously for discerning ears. You are able to immerse in the wonderful HiFi and bass, with vector flow technology ( VFT ), high-grade 57mm driver units. Don't worry about the low battery level. With the latest fast charging technology, you only need to charge for 10 minutes to listen to songs for 3 hours. Go out any time you want and immerse in the peaceful music world! Main Features:●Active noise cancelling. Push a button, you can immerse in the pure music world without noise from outside ●Built for discerning ears - since they are tuned over and over again by professionals with optimized technology●Incredible HiFi and bass with vector flow technology and 57mm big titanized driver units for ultra clear sound●Fast charging technology gives you 3 hours long acoustic feast after 10 minutes' charging whenever you want●Stylish appearance, with high-grade alloy body, rotatable structure, comfortable earmuffs, adjustable headbands