Iqua BHS - 601 - Manual (Page 11)

Volume Adjustment
During a call, press
Button for 1 second to add volume, press Button for 1 second to
reduce volume.
To Reset the Headset
You may want to reset the headset to original setting. This also clears all current pairings.
1. Assure the headset is OFF.
2. Constantly press the
Button until LED blinks red and blue color in turn (press more
than 30 seconds).
3. Release the Button.
4. Constantly press the Button again until you hear 2 beeps.
5. Connect the headset to the charger for a few seconds.
6. The headset will turn off and return to the original setting mode. All the previous pairing
data will be cleared.