Explorer 210/233 Series: Headset Controls
Turn On the Headset: Press and hold the call control button until the indicator glows blue. You will hear ascending tones.
Turn Off the Headset: Press and hold the call control button until the indicator glows red. You will hear descending tones. When the power is off, the indicator stays off.
Answer a Call: Briefly press the call control button. When you receive a call, your phone may ring before your headset rings. Wait until you hear the ring in your headset before you press the call control button to answer the call.
Reject a Call: Press the call control button for 2 seconds.
Make a Call: Enter the number on your phone, press send, and the call is automatically transferred to the headset; no need to press the call control button.
Adjust the Volume: Briefly press the volume button to increase volume. At upper limit you will hear two tones. Press again for lowest volume level. There are five volume levels.
Warning: Do not use headphones/headsets at high volumes for extended periods of time. Doing so can cause hearing loss. Always listen at moderate levels. Transfer a Call from Headset to Phone: While in a call, press and hold the call control button until you hear a tone. Transfer a Call from Phone to Headset: While in a call, press and hold the call control button until you hear a tone.