Wireless headset having improved RF immunity to RF electromagnetic interference produced from a mobile wireless communications device

A wireless headset comprising:

• a headset body;
• a microphone carried by said headset body;
• an earpiece carried by the headset body;
• and
• wireless and audio circuitry mounted within the headset body and comprising
• at least one circuit board comprising a substrate and circuit traces thereon defining respective audio connection lines to said earpiece and said microphone, and
• a respective filter coupled to each of said audio connection lines and comprising a respective filter serially connected into each signal trace and comprising a ferrite bead formed on a circuit trace and having a length as an overcoat sufficient to reduce RF coupling from another wireless communications device,
• each filter comprising a ferrite bead serially coupled with a respective audio connection line, and a capacitor coupled to said ferrite bead.

A method for making a wireless headset comprising:

• coupling a microphone and an earpiece to a headset body;
• and
• coupling wireless and audio circuitry within the headset body and comprising
• at least one circuit board comprising a substrate and circuit traces thereon defining respective audio connection lines to the earpiece and the microphone, and
• a respective filter coupled to each of the audio connection lines and comprising a respective filter serially connected into each signal trace and comprising a ferrite bead formed on a circuit trace and having a length as an overcoat sufficient to reduce RF coupling from another wireless communications device.