Product Number: MW2Q3AM/A The USB-C to 3.5 mm Headphone Jack Adapter lets you connect devices that use a standard 3.5 mm audio plug — like headphones or speakers — to your USB-C devices. What’s in the Box USB-C to 3.5 mm Headphone Jack Adapter Tech Specs Connections USB-C System Requirements Works with all devices that have a USB-C connector and support iOS 10 or later.