This Retrofit Kit allows you to upgrade your older model headset (H10-40, H10-30 etc..) microphones with our M-7/DC Amplified Electret Microphone which is the latest in microphone technology. Easy to install because you do not have to change the Boom Assembly.

Name of your friend:

E-mail of your friend:

Your name:

Your e-mail:

Your message: 18376G-02 M-7/DC Amplified Electret (Retrofit Kit)

Type the characters you see in the picture below.