Before using the earpiece for your 500K or NT series throat mic, you may need to adjust the length of the acoustic coil. You will need the Acoustic Coil Customization Adaptor (IA-ACADP) in order to shorten the coil. Simply use a pair of pliers to unscrew the earphone speaker and the acoustic coil and take out the coil.
Step 1: Using a pair of scissors, cut the coil at the area shown in diagram 1.
Step 2: Cut the coil to your desired length. We recommend cutting no more than 1cm at a time.
Step 3: Insert the metal adaptor and connect the two piece of the coil.
Step 4: Push the coil back into the screw mouth and screw the coil back into the speaker base.
Note: Please check the acoustic coil is to your desired length before cutting.
coil adaptorIf you do not have the metal Acoustic Coil Customization Adaptor (Product No: IA-ACADP), you can purchase one from one of our authorized resellers.
