JBL Original V750NC Everest Elite is a Bluetooth headset. It contains Built-In Microphone with Echo Cancellation Technology for Crystal Clear, Hands-Free Calls. A Sleek Fold-Flat Design And A Premium, Hard Carrying Case Allow Maximum Portability And Protection. It’s adaptive Noise Cancelling Over-Ear Bluetooth Headphones with Legendary JBL Pro Audio Sound. It has 15 Hour Battery, Quick Recharge in 3 Hours. Now you can wirelessly enjoy all your music. Experience the same elevated experience and incredible sound JBL has been delivering to concert halls, studios and living rooms for 70 years. Easily update your headphones over the air via the My JBL Headphones app so you’ll always have the latest and greatest features. Headphones are ergonomically designed to fit the unique contour of listeners’ ears.