USB/3.5 mm audio socket Q.1/Q.3 polar white, velvet. USB/3.5 mm audio socket suitable for connecting mobile devices such as cell phones or MP3 players (mini audio) as well as digital cameras and computer peripherals (USB 2.0), USB double socket (front and back) type A, USB 2.0 capable, jack double socket (front and back) gold-plated 3.5 mm, stereo, without spreading claws.