- Avoid direct sunlight or air from heaters and the like
- Make sure the plug is firmly inserted into the transceiver jack
- The microphone should be positioned 2cm to 5cm from the mouth
- Although this unit is drip-proof, be sure to wipe drops of water away when the unit is moistened with rain, etc.
- Compatible with VX-160, VX-230, VX-350, VX-410, VX-420, VX-420A