be provided in other embodiments it will also be appreciated that magnets can be provided in different positions other than those shown magnetism may be conducted through metal contacts to facilitate magnetic fields suiting connection to the plug whilst minimizing the of volume socket furthermore those skilled in the art will appreciate that rather than being magnetized the material which is used may simply be a magnetically permeable material i e a material which facilitates a magnetic attraction with a magnet or magnetized material provided in a plug for example alternatively magnetic means 6 may comprise magnets which act on magnetically permeable material rather than a magnet per se which is provided in or on a plug adapted for connection with the socket 1 referring now to fig2 the socket of fig1 is again illustrated but this time showing contact i e electrical conductor or terminal regions on face 4 conductor contact regions 7 are in this embodiment provided to allow the required number of contacts to adequately support a noise canceling headset conductor contact regions 8 may provide a power supply for operation of a device such as a noise canceling headset the contacts 7 and 8 are provided such that they are exposed conductors adapted.