Headsets and Microphones
This device is compatible with many headset and microphone accessories that connect using a 2.5 mm jack (Device Overview).
By default, the device is set to detect automatically when a new headset or microphone is connected.
NOTE:
When connecting a headset with a push to talk (PTT) button, you must press the PTT button after connecting the headset for the device to detect the headset.
This device is compatible with Voice Operated Transmission (VOX) devices. These accessories allow you to use the device hands-free by transmitting automatically when a voice is detected. You can adjust the sensitivity level of connected VOX devices (Advanced Radio Setup).