Today in 2015, laptops are equipped with an output jack, microphone and audio which are on one take .... But a lot of headset are still sold with two jacks, one for micro part and one for the audio Speakers .... this device allowed me at unbeatable prices, to connect my headset to my PC .... A flashing LED indicates the signal path and ... So good connection ... Thanks ... A good quality product, timely delivery, proper packaging, I RECOMMEND !!!