ACTIVE NOISE CANCELLATION & BUILT-IN MICROPHONE The hybrid active noise cancellation can detect and blocks out a wider range of low and medium frequency noises, making it easy to enjoy high-fidelity sound quality. Built-in tiny mics allow you to have crystal clear hands-free calling anytime, anywhere.24 HOURS PLAYTIME & DUAL MODE Up to 24 hours playtime with a single quick charging, Wireless Heaphones can be full charged within 1.5 hours. After 24 hours playtime, you can switch Bluetooth Headphones from wireless mode to wired mode to immerse yourself in the music without interruption. It is the best choice for long trips, sports and relaxation.FOLDABLE AND LIGHTWEIGHT DESIGN Made from premium materials and weighing only 0.38lb, upgraded bluetooth headphones are the lightest headphones ensuring lasting comfort. Adjustable headband makes it perfect for various head sizes in the most comfortable fit. Softer memory protein ear cups protect your ears during extended use.SEAMLESS BLUETOOTH CONNECTION Bluetooth headphones ensure ultra fast and stable bluetooth connection range-up to 10 m (33 ft). Just slide the on/off button and the headphones will be paired quickly. The Wireless Headphones are compatible with all Bluetooth or 3.5mm plug cable enabled devices!