ALL-DAY BATTERY AND CLEAR CALL QUALITY TECHNOLOGY: 60 hours of battery life keeps your headphones working all day with a single charge; plus, Surround's built-in microphone has advanced Clear Call Quality Technology, ensuring clear phone calls BLUETOOTH MULTIPOINT 2-DEVICE CONNECTION: stay connected to 2 devices at once; enjoy a seamless transition from your laptop to your iPhone and vice versa; switch back and forth between taking calls on the laptop and listening to music on your phone BELKIN SIGNATURE SOUND: designed with 40 mm drivers, Surround delivers captivating sound that makes each listening experience feel like your own personal concert; get a quality experience while listening to everyday sounds from music to podcasts, and more EAR CUP COMFORT AND FOLDABLE DESIGN: the pillowy soft ear cups provide all-day comfort and immersive sound absorption, while a foldable design allows you to conveniently carry them wherever you go; adjustable headband also caters to any head size TRUE WIRELESS BLUETOOTH 5.4 CONNECTION: enjoy the latest Bluetooth 5.4 technology for a stable, reliable connection with all Bluetooth-enabled devices within a 33-foot (10 m) range, providing smooth, high-quality audio without interruption UNIVERSAL COMPATIBILITY + USB-C FAST CHARGING: SoundForm Surround includes both 3.5mm and USB-C cables, allowing connection to a wide variety of modern audio sources. Plus, the USB-C port supports fast charging, ensuring minimal downtime between uses.* SUSTAINABLY MADE + 2-YEAR WARRANTY: Our SoundForm Surround wireless headphones are made with post-consumer recycled materials** (42.93% total aggregate) and 100% plastic-free packaging. And a 2-year warranty ensures you can purchase with peace of mind.