Retevis RT388 Bedienungsanleitung Seite 7

If you want to continue the monitoring,
please press MON button for at least
3 seconds. And press MON button
again to stop.
Battery Level Indicator
Displayed in the lower left corner of the screen,
convenient to know how much battery power is
remained.
When the indicator on the screen blinks, it means that
the batteries need to be changed(when using regular
AAA batteries) or charged(when using NiMH
rechargeable batteries).
External Headset/Microphone Jack
The unit support external headset connection.
To talk or listen through an external earpiece,
you need to remove the rubber hole cap at the
top of the unit, insert the favorable/suitable
headphone plug into the accessory jack, and
then put on your earpiece.
Charging(Optional)
If you want the units to be rechargeable,
please use rechargeable AAA batteries
(not included).
Then you can charge the units by
plugging the charger (not included)
connector into the accessory jack
and then connect the other end of the
charger to a general socket or somewhere else alike.
Below is information on specially designated charger
and rechargeable AAA batteries.
Note
When external earpiece is applied
Please adjust volume level accordingly.
Turn the radio off immediately if your ears feel
uncomfortable or itchy with headsets on.
Don't use the units in places that might cause explosion
or fire
Such as gas stations, unshielded electrical installations
and other unsafe places.
Simple Maintenance Tips
Gently wipe the dust or dirt off with a dry soft clean cloth.
Don't use any cleaning chemicals, as they can damage
the units.
When the radio is dropped into water, turn it off
immediately. Dry the outside of the radio with a clean
and soft cloth. Remove batteries and dry them, too. Put
the unit in a cool dry place to dry out all moisture.
In case that any other problem or malfunction occurs
during your use, please don't dissemble the radio's
circuit or hardware by yourself. You are welcome to
send the unit back to the seller or contact our customer
service for help.
Troubleshooting
1. Couldn't turn the units on
A. Check if batteries are installed properly;
B. Check if batteries need to be changed (when
using regular batteries), or charged (when using
NiMH batteries)
2. When reception or transmission is poor,
A. Increasing volume level; Pressing Mon button to
receive weak signals
6