A connector device of the above-mentioned art is often referred to as a genderless or hermaphroditic connector device. The contacts of such electrical connector devices are mounted into identical fittings, which can freely mate with any other, without regard for gender. A well-known connecting device of the above mentioned type is the “IBM data connector”, which is sometimes called IDC. It was developed for the data network technology named “Token Ring”. Headsets used in contact centres and offices are often provided with a so-called “quick disconnect” connector, which is a genderless electric connector used for fast disconnecting and connecting of a headset to a telephone or telephone amplifier. An example of such a connector is disclosed in U.S. Pat. No. 5,259,780. Jabra® markets a broad range of corded headsets for contact centres and offices, which are provided with a “Jabra QD plug”. This plug is a four pole genderless plug, which is suitable for telephone headsets.