User's Manual

the rule of 300ms/400ms(off/on) for 20 seconds after power
save is started and abides by the rule of
300ms/900ms(off/on)after 20 seconds.
7. Low cell indication
1) The radio checks the battery charge strength regularly.
2) The cell icon will blink when the radio is in low battery
power after making a low cell beeping.
3) You can not transmit for more than 10 seconds during low
cell.
8. RSSI display
1) RSSI Icon and strength appear on the LCD when the radio
receives a busy signal.
9. Volume control
1) Pressing the up/down key in the every mode increase or
decrease the volume.