10ft 3.5mm Headphone Stereo Audio Female to Male Extension Cable Cord For Mp4 3 This headset extension cable up to 3 meters the other is 3.5mm male the other end 3.5mm female to connect the same kinds of headphone plug size whether listening to music receive audition or for laboratory extension can be used. Interface Type: 3.5mm-3.5mm Interface Interface Cable length: 3 m Line Material: cloth lanyards Color: black package content 1 X 3.5mm Cloth lanyards headphone audio extension cable