Communications device for a protective helmet

A communications device for use with a protective helmet having a headband is provided. Generally, the communications device provides support member for a bone conduction microphone that is easily added to and removed from the protective helmet, allowing the communications device to be readily used with both new and existing protective helmets. While in use, support member positions the bone conduction microphone between the headband and a user's head, preferably between the napestrap and the center of the back of the user's head. The communications device can be used with any type of protective helmet, such as a fireman's helmet, a military helmet, a hard-hat, etc.