Noise-canceling headphones convert external ambient noise into reverse sound waves. The final sound heard by the human ears are: ambient noise + reverse ambient noise, so there will be greater connections between you and the music. The headset supports two Bluetooth devices at the same time. When watching a movie on a laptop or other device, you won't miss calls.IMPRESSIVE HIFI & STEREO SOUND: wireless headphones are powerful. You will feel like enjoying an immersive, accurate, and realistic performance on your phone, tablet, or laptop, and it will make you feel like a live concert at home.FOLDABLE DESIGN: Lightweight design,and adjustable headband allows children, teenagers, and adults to find the most suitable way to wear. Moreover, the foldable design is easy to store and carry, and soft protein earmuffs with memory foam padding can fit your ears. They are perfect for home office, online class, travel, tv, etc.