Abstract: Mobile telephone apparatus comprises a transceiver unit (10) having a handset cradle (12), signal antenna (14) and ports (16-24) for the connection of a handset, external loudspeaker/microphone, power supply etc. A power lead (26) for connecting the power supply port (24) of the apparatus to a cigarette lighter socket is stored when not in use by plugging the cigarette lighter adaptor (36) at one end of the lead (26) into a dummy socket (44) formed in a housing (42) which is detachably connected to the transceiver unit (10). The lead (26) is combined with a carrying strap (28), one end of which is connected to the cigarette lighter adapter and the other end (30) of which is detachably connectable to a retaining slot (32) on the transceiver unit (10).