You feel it the minute you put them on. The soft, plush cushions seal you in. Then you flip the switch and whoosh the world fades. And the music starts. The original noise cancelling headphones are back, now with better quiet (plus the new Aware Mode), shockingly light materials for premium comfort, and proprietary acoustic technology for deep, clear sound. It’s an icon reborn. World-class noise cancelling. High-fidelity audio. Quiet & aware Modes. Headphone FeaturesProtein Leather ear pieces. Detachable cable. Connection: wireless and wired. Bluetooth enabled for a wireless connection to your devices . Connects to devices via Bluetooth. With a 3.5mm jack connection. Remote with microphone for calls and track control controls. Adjustable headband. Foldable. Active noise cancellation. Carry case. Compatible with universal smartphones. Batteries required 1 x rechargeable battery (included) . Rechargeable battery. 24 hour battery life. 120 minute charging time. General InformationModel number: QuietComfort 45. Manufacturer’s 1 year guarantee. EAN: 17817835015. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard.