i. Tech Dynamic Clip III User Manual page 7

Using Your Headset
Voice Dialling from Your Headset
If your mobile handset is equipped with a voice dialling function,
simply press the MFB on your headset and when you hear a beep,
say the voice tag.
IMPORTANT Please make sure to record voice tag into the mobile
handset first before using voice dialling function.
Last Number Redialling from Your Headset
Press the MFB on your headset twice.
IMPORTANT The above functions are only applicable to mobile
handsets with Bluetooth Handsfree Profile. Functionality varies
depending on the mobile handset model you have. Please refer to
your mobile handset user guide for additional information.
Adjusting the Volume
Press the Volume Key repeatedly until you reach the desired volume
level.
Resetting the Headset
You may want to reset the headset to its original settings. This also
clears all current pairings.
1. Ensure the headset is OFF.
2. Press and hold the Volume Key 20 seconds and the LED alternately
flashes blue and red rapidly.
3. Release the Volume Key.
4. Press and hold the Volume Key again until you hear 2 beeps.
5. Recharge the headset for a few seconds.
The headset is turned off and returns to the original settings. All
current pairings are cleared.