WIRED ON-EAR HEADPHONES – NO CHARGING, NO PAIRING: A plug-in 3.5mm headphone with a fixed cord. There is no Bluetooth and no battery. Just plug in and listen. The cushions rest on your ears rather than around them, which keeps the headphones compact and light. CHECK YOUR PORT – 3.5MM AUX JACK: Works with devices that have a standard 3.5mm headphone jack, including most laptops, desktops, Chromebooks, tablets and Android phones. Phones without a headphone jack (such as newer iPhones) need an adapter, sold separately, or our USB-C version. BUILT-IN MICROPHONE FOR CLASSES & CALLS: The inline microphone handles video calls, online classes and voice chat. The inline remote adds play/pause and volume on phones and MacBooks. On Windows PCs, adjust volume from the computer itself. ADJUSTABLE FIT FOR KIDS, TEENS & ADULTS: The adjustable headband and soft cushions let one pair fit the whole family, for school, homework, travel or the home office. FOLDABLE & LIGHTWEIGHT: The headphones fold flat and weigh about 260 g, so they fit easily in a backpack or laptop bag. The noise-isolating cushions and 40mm drivers deliver balanced sound with bass for music, movies and lessons.