Noise Canceling: Dual Noise Sensor technology and an Integrated Processor V1 take noise canceling to the next level. Now you can fully immerse yourself in music Ambient Sound: In Ambient Sound mode, the WH-CH720N headphones capture more of the ambient sound around you thanks to the feedforward and feedback mics, so you can enjoy a natural listening experience while staying connected to your environment Quick Charge: With up to 35 hours of battery life, youll have enough power to keep listening all day and into the night. And if you need to top up in a hurry, a 3-minute quick charge will give you up to 60 minutes extra play time. Battery life is up to 50 hours with Noise Canceling off Precise Voice Pickup: Precise Voice Pickup Technology uses beamforming microphones to allow WH-CH720N headphones to pick up voices clearly and accurately for hands-free calls 2 Year Extended Epic Protect Warranty in Addition to the Included Full Manufacturer Warranty. Intended for Residential Use Only