The JBL Live Free NC+ are true wireless earbuds with Bluetooth and a waterproof build so you can exercise outside, whatever the weather Active Noise Cancelling and Ambient Aware allow you to focus on the music in your ear buds and run safely on the street, while the gel sleeves provide a secure and comfortable fit throughout the day These black earphones deliver up to 21 hours of wireless playtime once charged in the pocked-sized case, allowing you to keep pushing without breaking to recharge With a built-in microphone and hands-free technology, the JBL Live Free NC+ TWS enables you to take calls, adjust the volume and sync with your voice assistant from either headphone