02
Pas and control devicesNo.
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Headphone input jack
Audio input po
Signal light
Microphone volume adjustment
Keypad lock
Fixed antenna
OLED display
Volume up/channel up
Voice output /o
Volume down/channel down
Power input
Charging contacts
Back clip
Switch _
Operation
1.Power on/o: Press the switch on the left side
of the transmitter to the "ON" to turn on the
transmitter. Press to the "OFF" to power o the
transmitter.
2.Headphone volume adjustment: When the
screen is locked, press the "+" or "-" keys to
adjust the headphone volume. There are 9
levels of volume in total.
3.Channel adjustment: In the unlocked state,
press the "+" and "-" keys to adjust the number
of channels.
4.Microphone volume adjustment: When
unlocked, the mic button is used to adjust the
microphone gain, which can be adjusted from 1
to 7 levels. The higher the level, the wider the
range of sound collection, and the greater the
impact of environmental noise.
5.Unlock/lock screen: If no button is pressed for
30 seconds, the screen will automatically lock
and the lock icon will appear on the screen.
After locking and continuing without operation
for 30 seconds, the screen will turn o without
aecting normal use. When a key is pressed,
the screen lights up again. When you need to
unlock, press and hold the lock button for 3
seconds to unlock.
6.One-click pairing: The product is set to follow
automatically. Under normal circumstances, the
receiver will follow the transmitter channel, and
the screen will display CHS. If the automatic
tracking is not successful, you can t to adjust
the receiver to the same channel within the
eective range by long pressing the middle red
''mute button'' and "+" in the unlocked state for
3 seconds.
7.One-key shutdown: In the unlocked state,
long press the red ''mute key'' and "-" for 3
seconds within the eective range to shut
down the paired receiver. The Allo prompt is
displayed on the screen; the transmitter will
automatically exit after 8-9 seconds with
one-click shutdown command, and the Allo
prompt will not ash on the screen.
8.Mute: When the screen is locked or unlocked,
you can press the middle red "mute button" to
silence the transmitter and the screen mic will
display OFF. Press again to unmute, and the
screen mic will display the volume.
9.Mute: When the receiver does not exit the
speaking state, the transmitter can actively
cancel the receiver's right to speak. Press "Mic"
and "Mute Key" simultaneously for 3 seconds in
the unlocked state. When muted, the screen
will display BLock. Cancel the ban and repeat
the operation, and the BLock will disappear.
10.Power adjustment: In the o state, press
and hold the "+", "-", "mic" and "lock" keys at
the same time to turn it on. Power is divided
into high-end and low-end.
11.Signal light description: 1) When the
transmitter is speaking at the receiver, the
display light is green. Only when the
transmitter is speaking/muted, the signal light
has no color. 2) The charging status indicator
light is red and the full indicator light goes out.
Specications
1.Working frequency: European regulations
823-832 /863-865MHz, channel number 12;
US standard 902-928MHz , channel number 25.
2.Transmitting power: European regulation
823-832 100 mW _ max, 863-865 10 mW max;
U.S. regulations 902-928 20 mW _ max
3. Working current: 160mA
4. Charging method: TYPE-C with adapter
(DC5V 500mA ) or charging box TT022
5. Working temperature: -10 degrees to 50
degrees
6.up to 280 m in an open visual environment
(dierent frequency bands may be inteered
with in dierent areas and the distance will be
shoer accordingly )
7. Batte life: 10H
8. Size: about 55.8 mm X 86 mm X 18 mm
9.Batte capacity: 2500mAh lithium batte
Receiver
Location of pas and control devices
CAUTION
Before using this device, please read this guide
which contains impoant operating
instructions for safe usage, control information
and operational instructions for compliance
with RF Energy Exposure limits in applicable
national and international standards.
User’ instructions should accompany the
device when transferred to other users.
Unauthorized modication and adjustment
Changes or modications not expressly
approved by the pay responsible for
compliance may void the user’s authority
granted by the local government radio
management depaments to operate this radio
and should not be made. To comply with the
corresponding requirements, transmitter
adjustments should be made only by or under
the supeision of a person ceied as
technically qualied to peorm transmitter
maintenance and repairs in the private land
mobile and xed seices as ceied by an
organization representative of the user of those
seices. Replacement of any transmitter
component (cstal, semiconductor, etc.) not
authorized by the local government radio
management depaments equipment
authorization for this radio could violate the
rules.
FCC
This device complies with pa 15 of the FCC
Rules. Operation is subject to the following two
conditions: (Other devices are applicable
(1) This device may not cause harmful
inteerence.
(2) This device must accept any inteerence
received, including inteerence that may cause
undesired operation.
Note: This equipment has been tested and
found to comply with the limits for a Class B
digital device. These limits are designed to
provide reasonable protection against harmful
inteerence in a residential installation. This
equipment generates, uses and can radiate
radio frequency energy and, if not installed and
used in accordance with the instructions, may
cause harmful inteerence to radio
communications. However, there is no
guarantee that inteerence will not occur in a
paicular installation. If this equipment does
cause harmful inteerence to radio or
television reception, which can be determined
by turning the equipment o and on, the user
is encouraged to t to correct the inteerence
by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the
equipment and receiver.
—Connect the equipment into an outlet on a
circuit dierent from that to which the receiver
is connected.
—Consult the dealer or an experienced
radio/TV technician for help.
IC
Licence-exempt radio apparatus
This device contains licence-exempt
transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Develop-
ment Canada’s licence-exempt RSS(s).
Operation is subject to the following two
conditions:
(1) This device may not cause inteerence.
(2) This device must accept any inteerence,
including inteerence that may cause
undesired operation of the device.
This radio transmitter has been approved by
Innovation, Science and Economic Develop-
ment Canada to operate with the antenna
types listed below, with the maximum
permissible gain indicated. Antenna types not
included in this list that have a gain greater
than the maximum gain indicated for any type
listed are strictly prohibited for use with this
device.
CE
•(Simple EU declaration of conformity)
HENAN ESHOW ELECTRONIC COMMERCE CO.,
LTD declares that the radio equipment type is
in compliance with the essential requirements
and other relevant provisions of RED Directive
2014/53/EU and the ROHS Directive
2011/65/EU and the WEEE Directive
2012/19/EU; the full text of the EU declaration
of conformity is available at the following
internet address: www.retekess.com.
Disposal
The crossed-out wheeled-bin
symbol on your product,
literature, or packaging reminds
you that all electrical and
electronic products, batteries, or accumulators
must be taken to designated collection
locations at the end of their working life. Do
not dispose of these products as unsoed
municipal waste. Dispose of them according to
the laws and rules in your area.Iug
RF Safety
•This two-way radio uses electromagnetic
energy in the radio frequency (RF) spectrum to
provide communications between two or more
users over a distance. RF energy, which when
used improperly, can cause biological damage.
Please refer to the following websites for more
information on what RF energy exposure is and
how to control your exposure to assure
compliance with established RF exposure limits:
http://www.who.int/en/
•Keeping the radio at a proper distance is
impoant as RF exposure decreases with
increasing distance from the proper antenna. A
proper antenna is an antenna supplied with
this radio by the manufacturer or specically
authorized by the local authority for use with
this radio. This radio can only be operated by
use of an antenna of a type and maximum (or
lesser) gain approved for the transmitter under
regulations and rules. This transmitter must
operate with the antenna(s) documented and
in Push-to-Talk and body-worn congurations
as documented. Using authorized accessories
is impoant because the use of Non-Retevis
accessories may result in exposure levels, which
exceed the IEEE/ICNIRP RF exposure limits.
•Transmit no more than the rated duty factor
50% of the time. Transmitting necessa
information or less, is impoant because the
radio generates measurable RF energy
exposure only when transmitting in terms of
measuring for standards compliance. For users
who wish to fuher reduce their exposure,
some eective measures to reduce RF exposure
include:
•Reduce the amount of time spent using your
wireless device.
•Use a speakerphone, earpiece, headset, or
other hands-free accesso to reduce proximity
to the head (and thus head exposure). While
wired earpieces may conduct some energy to
the head and wireless earpieces also emit a
small amount of RF energy, both wired and
wireless earpieces remove the greatest source
of RF energy (handheld device) from proximity
to the head and thus can greatly reduce total
exposure to the head.
•Increase the distance between wireless
devices and your body.
•This radio is designed for and classied as
“General population/uncontrolled use”. General
population/uncontrolled environments are
dened as locations where there is exposure of
individuals who have no knowledge or control
of RF exposure level.
Hand-held Mode
To control your exposure and ensure
compliance with the controlled environment
exposure limits, always adhere to the following
procedure:
-Hold the radio in a veical position with the
microphone (and other pas of the radio
including the antenna) at least one inch (2.5
centimeters) away from the nose or lips.
Electromagnetic Inteerence/Compatibility
Nearly eve electronic device is susceptible to
electromagnetic inteerence (EMI) if
inadequately shielded, designed, or otherwise
congured for electromagnetic compatibility.
During transmissions, your radio generates RF
energy that can possibly cause inteerence
with other devices or systems. To avoid such
inteerence, turn o the radio in areas where
signs are posted to do so, such as hospitals or
healthcare facilities.
Persons with pacemakers, implantable
cardioveer debrillators (ICDs) or other active
implantable medical devices should:
• Consult with their physicians regarding the
potential risk of inteerence from radio
frequency transmitters, such as poable radios
(poorly shielded medical devices may be more
susceptible to inteerence).
• Turn the radio OFF immediately if there is
any reason to suspect that inteerence is
taking place.
• Do not car the radio in a chest pocket or
near the implantation site, and car or use the
radio on the opposite side of the body from the
implantable device to minimize the potential
for inteerence.
Hearing Aids: Some digital wireless radios may
inteere with some hearing aids. In the event
of such inteerence, you may want to consult
your hearing aid manufacturer to discuss
alternatives.
Other Medical Devices: If you use any other
personal medical device, consult the
manufacturer of your device to determine if it
is adequately shielded from RF energy. Your
physician may be able to assist you in
obtaining this information.
Protect your hearing
• Use the lowest volume necessa to do your
job. Turn up the volume only if you are in noisy
surroundings.
• Limit the amount of time you use headsets
or earpieces at high volume.
• When using the radio without a headset or
earpiece, do not place the radio's speaker
directly against your ear.
• Use carefully with the earphone maybe
possible excessive sound pressure from
earphones and headphones can cause hearing
loss.
CAUTION: Exposure to loud noises from any
source for extended periods of time may
temporarily or permanently aect your hearing.
The louder the radio's volume, the less time is
required before your hearing could be aected.
Hearing damage from loud noise is sometimes
undetectable at rst and can have a cumulative
eect.
Batteries Safety
•WARNING: KEEP NEW OR OLD USED
BATTERIES OUT OF REACH OF CHILDREN.
•In the event of a batte leaking, do not allow
the liquid to come into contact with the skin or
eyes. If contact has been made, wash the
aected area with copious amounts of water
and seek medical advice immediately.
•If a radio or a batte has been submerged in
water, please d and clean it before use. Do
not d the radio or batte with an appliance
or heat source, such as a hair der or
microwave oven. If the radio has been
submersed in a corrosive substance (e.g.
saltwater), rinse the radio and batte in fresh
water, then d them.
•Turn o your radio before charging.
•Batteries shall be charged at 10℃~40℃
environment temperature specied. If the
environment temperature is lower than 0℃, the
charge shall be prohibited.
•Rechargeable batteries are only to be
charged by adults or by children at least 8
years old under adult supeision.
WARINING:CHOKING
HAZARD-Small Pas. Not suitable
for children under 3 years old.
•Contact Retekess for assistance regarding
repairs and seice.
•For a list of Retekess-approved accessories
for your radio model, visit the website
http://www.retekess.com