In FM channel mode:
- Short press: Select the channel
up or down
In menu mode:
- Short press: Return to the
previous level, exit the menu
In standby mode:
- Short press: When entering a
frequency, deletes the last digit
- Long press: Toggle channel
display mode: channel name,
channel frequency, channel
number (can only be switched in
channel mode)
In standby mode:
- Short press: Toggle the main
frequency or main channel
- Long press: Start scanning
In FM mode:
- Short press: Start FM scan
In standby mode:
- Short press: Enter FM radio mode
- Long press: Lock or unlock the
keyboard
In FM mode:
- Exit FM radio mode
In standby mode:
- Directly input frequency points
In channel mode:
- Short press: Pressing 0-9 allows
quick access to the corresponding
channel.