5 Way Port music sound AUX headset extension Earphone audio mathiator 3.5mm cable 1 male to 1 2 3 4 5 female 5 way port music sound output direction stereo headset extension Compatible with all 3.5mm jack audio devices. Compatible with all headphones, headsets and earphones with 3.5mm jack Connect up to 5 headphones, and your iPod, to start sharing; or, add another iPod to mix songs and listen together. Allows you to connect multiple sets of headphones, earbuds or stereo speakers to an mp3 or media player. Material: Plastic housing Size: diameter 51mm; thickness 13mm Interface: 3.5mm audio jack*6