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1.Check the power LED whether light. Is not light, indicating a power problem, check 

    the power cable or replace the battery. 

2.Check the audio cable is connected correctly. With the manual installation of the audio 

   cable connection.

3.Check speakers / headphones are working properly. Please replace speakers or 

   headphones.

4.Check audio input. If the microphone input, check the microphone is working properly;

   if other audio input, make sure that the device is working correctly.

5.Check that the antenna is properly installed. installed correctly, and tighten.

6.Check whether the audio and volume control device is in the smallest state. If so, 

   please adjust the volume to a moderate position.

7.Inspect equipment whether it has RF switch, if yes, please put the RF switch on.

8.Check the status lights to see in what state. Long light shows the receiver did not 

   receive the signal. This case, please adjust the receiver’s channel, so that the receiver 

   and transmitter used in the same channel. when the two channels are same, the lights 

   go out, work properly. If the channel is the same, but the receiver is not receiving the 

   transmitter signal, hold down the control key of channel that for 20 seconds, the device 

   settings to their original settings, and then re-pairing frequency.

1.Battery upside down. Align the battery contacts to the host cell and installation.

2.Charging power cable loose. make sure the power cable is good.

3.Not equipped with the device adapter and cable for charging.please use the charging 

    device.

4.Battery aging, replace the battery.

1.Audio cable errors or loose. Connected with the manual and tighten.

2.The source input sound excessive. Please adjust the input audio volume.

3.Antenna not installed or bad. Install and tighten.

4.Battery not enough. Please recharge or replace batteries.

5.MIC switch and audio switch conversion errors, which can press the plus or minus key 

   to change it.

Discharge Fault

No sound troubleshooting

The reasons of not charge or charge not fully and solution

The reasons of sound Distorted and solution

Electrical Specification

Frequency Response.........................................................................20Hz-20KHz

Frequency Range....................................................................2400MHz-2483MHz

THD...................................................................................................0.3%@1kHz

S/N Ratio......................................................................................................95dB

Latency....................................................................................................

0.5ms

Operation Temperature.........................................................................-25

-85

Work Voltage........................................................................................DC 3.6-6V

TX Power................................................0-18dBm Select (decided when ordering)

WARNING

EU Importer

Name

Germany Retevis Technology GmbH

Address

Uetzenacker 29,38176 wendeburg

RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE

ATTENTION!

Before using this radio, read this guide which contains important operating instructions for safe 

usage and RF energy awareness and control for compliance with applicable standards 

and regulations.

This radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide comm-

unications between two or more users over a distance. RF energy, which when used improperly, 

can cause biological damage. 

All Retekess radios are designed, manufactured, and tested to ensure they meet government-

established RF exposure levels. In addition, manufacturers also recommend specific operating

instructions to users of the radios. These instructions are important because they inform users 

about RF energy exposure and provide simple procedures on how to control it.

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/

Local Government Regulations

When radios are used as a consequence of employment, the Local Government Regulations 

requires users to be fully aware of and able to control their exposure to meet occupational req-

uirements. Exposure awareness can be facilitated by the use of a product label directing users 

to specific user awareness information. Your Retekess radio has a RF Exposure Product Label.

 Also, your Retekess user manual, or separate safety booklet includes information and operating 

instructions required to control your RF exposure and to satisfy compliance requirements

Radio License (if appropriate)

Governments keep the radios in classification, business radios operate on radio frequencies 

that are regulated by the local radio management departments (FCC, ISED, OFCOM, ANFR, 

BFTK, Bundesnetzagentur...).To transmit on these frequencies, you are required to have a 

license issued by them. The detailed classification and the use of your radios, please contact 

the local government radio management departments.

Use of this radio outside the country where it was intended to be distributed is subject to 

government regulations and may be prohibited.

Unauthorized modification and adjustment

Changes or modifications not expressly approved by the party responsible for compliance may 

void the user’s authority granted by the local government radio management departments 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 supervision of a person certified 

as technically qualified to perform transmitter maintenance and repairs in the private land mobile 

and fixed services as certified by an organization representative of the user of those services.

Replacement of any transmitter component (crystal, semiconductor, etc.) not authorized by the 

local government radio management departments equipment authorization for this radio could 

violate the rules

FCC Requirements:

 

•This device complies with part 15 of the FCC Rules. Operation is subject to the following two 

  conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause 

      undesired operation.

•This equipment has been tested and found to comply with the limits for a Class B digital device, 

  pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable 

  protection against harmful interference 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 interference to radio communica-

tions. However, there is no guarantee that interference will not occur in a particular installation. 

If this equipment does cause harmful interference to radio or television reception, which can be 

determined by turning the equipment off and on, the user is encouraged to try to correct the 

interference 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 different from that to which the receiver is 

    connected.

-- Consult the dealer or an experienced radio/TV technician for help.

CE Requirements

•(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 in the European Union, all electrical and electronic products, batteries, and 

accumulators (rechargeable batteries) must be taken to designated collection locations 

at the end of their working life. Do not dispose of these products as unsorted municipal 

waste. Dispose of them according to the laws in your area.

IC Requirements:

 

Licence-exempt radio apparatus

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, 

Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to 

the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired 

      operation of the device.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio 

exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :

(1) l’appareil ne doit pas produire de brouillage;

(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le 

     brouillage est susceptible d’en compromettre le fonctionnement

RF Exposure Information

•DO NOT operate the radio without a proper antenna attached, as this may damage the radio 

 and may also cause you to exceed RF exposure limits. A proper antenna is the antenna 

 supplied with this radio by the manufacturer or an antenna specifically authorized by the 

 manufacturer for use with this radio, and the antenna gain shall not exceed the specified gain 

 by the manufacturer declared.

•DO NOT transmit for more than 50% of total radio use time, more than 50% of the time can 

 cause RF exposure compliance requirements to be exceeded.

•During transmissions, your radio generates RF energy that can possibly cause interference 

 with other devices or systems. To avoid such interference, turn off the radio in areas where 

 signs are posted to do so. 

•The device complies with RF specifications when the device used at 5mm from your body. 

 Third-party belt-clips, holsters, and similar accessories used by this device should not contain 

 any metallic components. Body-worn accessories that do not meet these requirements may 

 not comply with RF exposure requirements and should be avoided.

•DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such 

 as hospitals, aircraft, and blasting sites.

 

Avoid Choking Hazard

                            

Small Parts. Not for children under 3 years.

Protect your hearing:

                      • Use the lowest volume necessary to do your job.

                      • Turn up the volume only if you are in noisy surroundings.

                      • Turn down the volume before adding headset or earpiece.

                      • 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 careful with the earphone maybe possible excessive sound pressure from 

                        earphones and headphones can cause hearing loss

Note: Exposure to loud noises from any source for extended periods of time may temporarily or 

          permanently affect your hearing. The louder the radio's volume, the less time is 

          required before your hearing could be affected. Hearing damage from loud 

          noise is sometimes undetectable at first and can have a cumulative effect.

Avoid Burns

 

                      

Antennas

                      •Do not use any portable radio that has a damaged antenna. If a damaged antenna 

                       comes into contact with the skin when the radio is in use, a minor burn can result.

                      

Batteries (If appropriate)

                      •When the conductive material such as jewelry, keys or chains touch exposed

                       terminals of the batteries, may complete an electrical circuit (short circuit the 

                       battery) and become hot to cause bodily injury such as burns. Exercise care in 

                       handling any battery, particularly when placing it inside a pocket, purse or other 

                       container with metal objects

                      

Long transmission

                      •When the transceiver is used for long transmissions, the radiator and chassis 

                       will become hot.

Safety Operation

 

 

Forbid

                      •Do not use charger outdoors or in moist environments, use only in dry locations/

                       conditions.

                      •Do not disassemble the charger, that may result in risk of electrical shock or fire.

                      •Do not operate the charger if it has been broken or damaged in any way.

                      •Do not place a portable radio in the area over an air bag or in the air bag 

                       deployment area. The radio may be propelled with great force and cause serious 

                       injury to occupants of the vehicle when the air bag inflates.

                      To reduce risk

                      •Pull by the plug rather than the cord when disconnecting the charger.

                      •Unplug the charger from the AC outlet before attempting any maintenance or 

                       cleaning.

                      •Contact Retekess for assistance regarding repairs and service.

                      •The adapter shall be installed near the equipment and shall be easily accessible

                      •Risk of explosion if battery is replaced by an incorrect type. Dispose of used 

                       batteries according to the instructions.

                      •Adapter shall be installed near the equipment and shall be easily accessible.

                      •The plug considered as disconnect device of adapter.

                      •The operating temperature of the EUT can’t exceed the specified range.

Approved Accessories

                      •This radio meets the RF exposure guidelines when used with the Retekess 

                       accessories supplied or designated for the product. Use of other accessories 

                       may not ensure compliance with the RF exposure guidelines and may violate 

                       regulations.

                      •For a list of Retekess-approved accessories for your radio model, visit the 

                       following website: http://www.Retekess.com

WARNING

WARNING

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