User's Manual
4.4 Accessory connector
Accessory connector is used to connect external speaker MIC, and headset, etc.
Please close the cover when it is used.
Figure 4-4) Accessory connector
5. Radio operation
The definition of the various buttons of the XP-100D/400D series is the same as Figure 5-1).
Figure 5-1) XP-100D/400D Series button definition