1. Introducció
Thank you for choosing the Retevis RB689 Walkie Talkie with Wireless Microphone. This professional two-way radio system is designed for reliable long-range communication in various environments, offering features such as a wireless microphone for convenience, VOX hands-free operation, and a robust 2600mAh battery for extended use. This manual will guide you through the setup, operation, and maintenance of your device to ensure optimal performance.
2. Contingut del paquet
Please check the package carefully to ensure all items are present and in good condition. If any items are missing or damaged, please contact your retailer.
- 2 x RB689 Walkie Talkie
- 2 bateria de ions de liti de 2600 mAh
- 2 x Clip de cinturó
- 2 x cordó
- 2 x cable de càrrega tipus C
- 2 x Carregador d'escriptori
- 2 x Wireless Speaker Microphone
- 2 x Manual d'usuari en diversos idiomes
- 2 x antena

Figure 2.1: Complete package contents of the Retevis RB689.
3. Producte acabatview
The Retevis RB689 is a high-performance two-way radio designed for clear and reliable communication. It features a compact design, a digital display, and a robust build. The included wireless speaker microphone enhances usability by allowing hands-free communication.

Figure 3.1: Retevis RB689 Walkie Talkie and Wireless Microphone.
3.1 Walkie Talkie Components
- Antena: Per transmetre i rebre senyals.
- Control de potència/volum: Encén/apaga la ràdio i ajusta el volum.
- Selector de canals: Gira per seleccionar el canal de comunicació desitjat.
- Botó PTT (Prem per parlar): Premeu i manteniu premut per transmetre, deixeu-lo anar per rebre.
- Altaveu/micròfon: Integrated for audio input and output.
- Pantalla digital: Shows channel, battery status, and signal strength.
- Jack d'accessoris: Per a accessoris d'àudio externs.
3.2 Wireless Speaker Microphone Components
- Botó PTT: For transmitting.
- Ponent: Per a la sortida d'àudio.
- Micròfon: Per a entrada d'àudio.
- Control de volum: Ajusta el volum dels altaveus.
- Port de càrrega tipus C: Per carregar el micròfon.
- Clip de cinturó: For attaching to clothing.

Figure 3.2: Retevis Wireless Speaker Microphone.
4. Configuració
Follow these steps to prepare your Retevis RB689 for use:
- Instal·leu la bateria: Align the 2600mAh Li-ion battery with the battery compartment on the back of the walkie talkie. Push it firmly until it clicks into place.
- Connecteu l'antena: Screw the antenna clockwise into the connector on top of the walkie talkie until it is secure. Do not overtighten.
- Charge the Walkie Talkie: Place the walkie talkie into the desktop charger. Connect the Type-C charging cable to the desktop charger and a power source. The indicator light on the charger will show charging status. A full charge provides approximately 17-18 hours of use.
- Charge the Wireless Speaker Microphone: Connect the Type-C charging cable directly to the wireless speaker microphone's charging port and a power source.
- Attach Belt Clip/Lanyard: Secure the belt clip to the back of the walkie talkie or wireless microphone if desired. Attach the lanyard for convenient carrying.

Figure 4.1: Charging the Retevis RB689 Walkie Talkie.
5. Instruccions de funcionament
Once your devices are charged and assembled, follow these steps for basic operation:
- Encès/apagat: Rotate the Power/Volume knob clockwise to turn on the walkie talkie. Rotate counter-clockwise until it clicks to turn off.
- Ajustar el volum: After powering on, continue rotating the Power/Volume knob to adjust the listening volume.
- Seleccioneu el canal: Rotate the Channel Selector knob to choose one of the 16 available channels. Ensure all radios you wish to communicate with are on the same channel.
- Transmit (Talk): Press and hold the PTT button on the walkie talkie or wireless microphone. Speak clearly into the microphone. Release the PTT button to stop transmitting and listen for a response.
- Receive (Listen): Quan no es prem el botó PTT, la ràdio està en mode de recepció.
- Wireless Microphone Connection: The wireless speaker microphone will automatically connect to the walkie talkie when both devices are powered on. No manual pairing is typically required.
- Funció VOX: The RB689 supports VOX (Voice Operated Exchange) for hands-free operation. When VOX is enabled, you can transmit by speaking into the microphone without pressing the PTT button. Refer to the detailed user manual for activation and sensitivity settings.

Figure 5.1: VOX Function in operation.
6. Funcions avançades
- Wireless Cloning: The RB689 features a wireless cloning function, allowing you to quickly synchronize the frequency and settings of one walkie talkie to another. This simplifies setup for multiple units. Consult the full user manual for specific instructions on initiating wireless cloning.
- Funció de silenciador: The squelch feature automatically mutes the speaker when no signal is being received, reducing background noise and improving clarity.
- Llanterna LED: The walkie talkie includes a built-in LED flashlight for illumination in low-light conditions.
- Alarma d'emergència: An emergency alarm function is available for critical situations, allowing you to quickly alert others.
- Qualitat de so clara: The wireless microphone is equipped with a large 40mm speaker, providing clear and crisp audio for effective communication.

Figure 6.1: Clear Sound Quality.

Figure 6.2: Rugged and Durable Design.
7. Consideracions sobre l'abast
The effective communication range of two-way radios is influenced by several factors, including terrain, obstacles, radio power, antenna type, and atmospheric conditions. While manufacturers may state maximum ranges under ideal conditions (e.g., line of sight from a mountain top), real-world performance in urban, suburban, or rural areas will vary.
Factors affecting radio range:
- Terreny i obstacles: Mountains, buildings, and dense foliage can block radio signals.
- Radio Power (Watts): Higher power generally means longer range.
- Antena: A high-gain antenna can improve signal transmission and reception.
- Condicions atmosfèriques: Weather can affect signal propagation.
- Ràdio Horitzó: The curvature of the Earth limits line-of-sight communication.
Per ampliar la distància de comunicació:
- Increase transmission power (if applicable and legally permitted).
- Improve reception sensitivity (adjust squelch threshold, use a high-gain antenna).
- Communicate from a higher elevation.
- Ensure your battery is fully charged.
Video 7.1: This video explains the factors affecting two-way radio range, including terrain, obstacles, radio power, antenna type, atmospheric conditions, and the radio horizon. It clarifies common misconceptions about advertised ranges and provides practical advice on how to extend communication distance by optimizing transmission power, improving reception sensitivity, and utilizing higher elevations.
8. Manteniment
Proper maintenance ensures the longevity and optimal performance of your Retevis RB689 walkie talkie:
- Cura de la bateria: Always use the original charger. Do not overcharge or deep discharge the battery. Store batteries in a cool, dry place when not in use.
- Neteja: Utilitzeu un suau, damp cloth to clean the radio's exterior. Do not use harsh chemicals or solvents. Ensure all ports are dry before charging or connecting accessories.
- Emmagatzematge: Store the walkie talkie in a dry, dust-free environment away from extreme temperatures. Remove batteries if storing for extended periods.
- Inspecció de l'antena: Regularly check the antenna for any damage. A damaged antenna can significantly reduce range and performance.
9. Solució De Problemes
Si teniu problemes amb el vostre Retevis RB689, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Bateria esgotada o instal·lada incorrectament. | Carregueu la bateria completament. Assegureu-vos que la bateria estigui instal·lada correctament. |
| No es pot transmetre ni rebre | Canal incorrecte, fora de l'abast o antena solta. | Verifiqueu que les dues ràdios estiguin al mateix canal. Acosteu-vos a l'altra ràdio. Comproveu la connexió de l'antena. |
| Mala qualitat d'àudio | Low battery, squelch level too high, or interference. | Charge the battery. Adjust squelch level. Move away from sources of interference. |
| Wireless microphone not connecting | Microphone battery low or out of range. | Charge the wireless microphone. Ensure it is within close proximity to the walkie talkie. |
10. Especificacions
Especificacions tècniques detallades del walkie-talkie Retevis RB689:
| Característica | Detall |
|---|---|
| Marca | Retevis |
| Número de model | RB689 |
| Color | Ferrous (Black) |
| Nombre de canals | 16 |
| Tipus de bateria | Ió de liti de 2600 mAh (inclosa) |
| Voltage | 7.4 volts (CC) |
| Pes de l'article | 627 grams (aproximadament) |
| Sound/Noise Level | 40 decibels |
| Número de part | EUA9243DX2 |
| Components inclosos | 2x RB689 Walkie Talkie, 2x 2600mAh Li-ion Battery, 2x Belt Clip, 2x Lanyard, 2x Type-C Charging Cable, 2x Desktop Charger, 2x Wireless Speaker Microphone, 2x Multi-language User Manual, 2x Antenna |
11. Garantia i Suport
Retevis provides the following warranty and support for your RB689 Walkie Talkie:
- Període de garantia: 2 years warranty for the radio body and 1 year warranty for accessories.
- Política de devolució: 30 days no-reason return.
- Servei posterior a la garantia: Maintenance service is available beyond the warranty period. Buyers are responsible for associated costs.
- Atenció al client: For any inquiries or support needs, please contact us through Amazon. We aim to respond within 12 hours.