The on/off switch for the Symphonix earpiece is located on the top of the earpiece body, just
above your ear when you have the earpiece on. Flip it down to turn the earpiece on.
The RCA Symphonix earpiece has three preset levels of sound amplification to fit three distinct
user profiles or listening environments. When you turn it on, the Symphonix earpiece goes to
setting 1 (minimum noise reduction, low-level amplification).
To adjust the volume: Find the volume button directly above the on/off switch on the earpiece
body. Completely depress it for 1 second. You will hear 2 short beeps, which means the earpiece
is now on setting 2. For level 3, press the volume button again (3 beeps). To return to level 1,
press the volume button a third time.