Key Features and Specifications Connectivity: The earbuds feature a 3.5mm jack, making them compatible with smartphones, tablets, and laptops that have a standard headphone port. Design: They have an in-ear design with silicone tips for comfort and come with a durable, 46-inch (approx. 4 feet) braided cable. Functionality: A built-in microphone allows for hands-free phone calls, and in-line controls on the cord enable easy volume adjustment, playing, and pausing of media.