Even in public or noisy indoor environments, the QuietComfort 45 Noise-Canceling Wireless Over-Ear Headphones from Bose can deliver a private audio experience. Utilizing active noise cancellation, internal microphones monitor sound at your ears while external mics pick up ambient sound. Whether it's music, podcasts, a movie, or absolute silence, the QuietComfort 45 will know what you want to hear, and create a sound wave for the rest of the noise to cancel it out. A quad mic system gives you similar noise reduction during calls and the built-in battery can last for up to 24 hours before needing to be recharged or converted to a pair of wired headphones with the included AUX cable. Aware Mode When you need to be more in touch with the environment around you, activate Aware Mode to let the world back in. The external microphones take in ambient sound and feeds it directly to your ears. When you're not listening to music, the effect can make you forget that you're wearing headphones at all. Quad Mics with Beamforming An array of four microphones using beamforming technology help to focus on your voice during hands-free calls, eliminating noise and wind from being heard on the other end. Long Battery Life On a full charge the Bose QuietComfort 45 headphones can run for up to 24 hours. They only take up to 2 hours to recharge, but with a quick 15-minute charge you can enjoy up to 3 hours of audio. Multi-Point With support for multi-point technology, the QuietComfort 45 headphones can be paired with two devices simultaneously, letting you seamlessly switch between them as needed. Enjoy a game or movie on your tablet and immediately switch to your phone to take an incoming call. TriPort Headphone Structure Utilizing external ports and vents in the earcups, Bose's TriPort headphone structure increases the acoustic volume while maintaining an overall compact size. SimpleSync When you need to keep it quiet in the house but still want to enjoy your music or movies, you can use SimpleSync to more easily pair and stream audio to your QuietComfort 45 headphones from select Bose speakers and soundbars. Additional Features

Lightweight and durable glass-filled nylon and stainless steel construction

Volume-optimized active EQ automatically tunes the frequency response for more lifelike sound

Electronic circuitry helps to keep a low noise floor

Works with the Bose Music app