The Sony ULT Wear Noise-Canceling Headphones deliver powerful sound with deep, amplified bass at the touch of the ULT button. Featuring advanced noise-canceling technology and built-in Alexa voice control, they let you enjoy music without distractions while staying hands-free. Designed with soft thermo-foaming ear cushions, these headphones provide all-day comfort, and their swivel-fold design with a compact carry case makes them perfect for travel. With up to 30 hours of battery life and quick charging that gives 90 minutes of playtime in just 3 minutes, they?re built for non-stop listening. Crafted from recycled plastic materials and packaged without plastic, the ULT Wear combines eco-friendly design, comfort, and powerful sound in one sleek pair of headphones.