
| Model GXT500/550 Series | ® | 
EXTERNAL SPEAKER/MICROPHONE JACK :
Your GXT500/550 Series can be used with an optional external speaker/microphone or headset, freeing your hands for other tasks. To use an optional speaker / microphone or head-
set:
·Insert the plug(s) into the SPK/MIC jacks
·Place the earbud into your ear, and adjust the mic into your desired position.
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