No matter where you go, the Sony WH-1000XM4 Wireless Noise-Canceling Over-Ear Headphones deliver pristine sound quality while automatically adjusting ambient sound according to your activity and registered locations, leaving your hands and mind free from the hassle of changing settings just to hear what you want to hear. Plus, the headphones detect when youre wearing them and start and stop your audio for you.Noise cancellation is accomplished with Sonys dedicated HD Noise-Canceling QN1 processor and Sense Engine. Sense Engine is designed to automatically adjust the level of ambient sound based on your environment. If quick communication is needed, simply speak to chat without audio playing or just cover the right earcup with your hand to monitor the outside world.Manufacturer Included Items Include:Sony WH-1000XM4 Wireless Noise-Canceling Over-Ear Headphones (Black)Headphone Connection Cable (3.94';)USB Type-C Cable (7.9")Plug Adapter for In-Flight UseCompact Carry CaseLimited 1-Year WarrantyBundle Items Include:1 x Sony WH-1000XM4 Wireless Noise-Canceling Over-Ear Headphones (Black)1 x Single Port USB Wall Charger1 x Microfiber Cloth