Cowin E7 Active Noise Cancelling Bluetooth Over-ear Headphones

- Professional Active Noise Canceling Technology - Proprietary 40mm Large-aperture Drivers. - High-quality Built-in Microphone and NFC Technology.  - The Professional Protein Earpad and 90° Swiveling Earcups.  - A built-in 600mAh battery won't allow your headphones power off, you can enjoy your world without noise for 30 hours' long time. Comes with box/charging cable!