- Active Noise Cancelling technology - TruNote Auto Sound Calibration - Bluetooth 4.0 - 10 hours battery life - Auto off - Built in microphone What's included? - 1 JBL headphone case - 1 Micro USB charging cable - 1 Audio cable with 3.5mm jaxk - Quick start guide manual Less than a year old headphones. Selling it because it was given a gift but was too big for me. Prefer to have small headphones. No problems at all. 100% functional. Still under warranty. Original receipt included.