Cord, CD-318. Extension cord used with the T-30 throatmicrophone. The microphone plug was inserted into the jack of the extension cord (JK-48). The cord has an inline 'push to talk' switch, SW141-V, and a black PL-68 'type' jackplug for connecting with the aircraft intercom. An adjustable leather strap was used to hang the extension cable around the airman's neck. This is an officially modified CD-308 in that the locking 'button' on the push to talk switch has been removed. The rubber covered loom has been 'coiled' and is rather soiled with some surface wear or heat damage but appears to be in quite good used condition. Stock code H23413.