1. Introducció
This manual provides detailed instructions for the safe and effective use of your Retevis EZTalk 4S Waterproof Two Way Radio. Please read this manual thoroughly before operating the device and retain it for future reference.
1.1 Producte acabatview
The Retevis EZTalk 4S is a robust, IP68-rated waterproof and floating GMRS two-way radio designed for outdoor activities such as kayaking, fishing, rafting, and boating. It features long-distance communication, a long-lasting battery, NOAA weather alerts, and an emergency alarm function.

Figure 1.1: Retevis EZTalk 4S Product Details and Components
1.2 Contingut del paquet
Assegureu-vos que tots els articles estiguin al paquet. Si falta algun article o està malmès, poseu-vos en contacte amb el vostre distribuïdor.
- EZTalk 4S walkie talkie *2
- 2000mAh Li-ion Battery & Base charger *2
- Type-C Charging cable & Adapter *2
- Belt clip & Lanyard *2
- Manual d'usuari *1

Figura 1.2: Contingut del paquet
2. Característiques del producte
2.1 IP68 Waterproof & Floating Design
The EZTalk 4S is rated IP68, providing complete protection against dust and water immersion up to 1 meter for 2 hours. Its floating design ensures that if dropped in water, the radio will float to the surface for easy retrieval.

Figure 2.1: IP68 Waterproof and Floating Capability

Figure 2.2: Corrosion-Proof Design for Water Environments
Video 2.1: Demonstration of Retevis EZTalk 4S Waterproof and Floating Capabilities
2.2 Comunicació de llarg abast
Experience clear and reliable communication over extended distances. The EZTalk 4S offers a communication range of up to 4.7 km in urban areas and an impressive 10 km on open water.

Figure 2.3: Extended Communication Range
2.3 Long-Lasting Battery & Charging
Equipped with a 2000mAh battery, the radio provides over 17 hours of continuous use and up to 100 hours of standby time. It supports flexible charging options: direct Type-C cable charging or convenient dock charging.

Figure 2.4: Battery Life and Charging Options
Video 2.2: Demonstration of Dual Charging Options (Type-C and Base Charging)
2.4 Alertes meteorològiques de la NOAA
Stay informed about changing weather conditions with access to 12 NOAA weather channels, providing real-time updates and alerts.

Figure 2.5: NOAA Weather Alert Functionality
2.5 Alarma d'emergència
In emergency situations, activate the alarm function to alert others to your location or need for assistance.

Figure 2.6: Emergency Alarm Feature
2.6 Llanterna
The radio includes a built-in LED flashlight for illumination in low-light conditions. It also features a water-activated LED that lights up automatically if the radio falls into water, aiding in retrieval.

Figure 2.7: Built-in LED Flashlight
2.7 Drenatge de vibracions
After submersion, the vibration drainage function can be activated to expel water from the speaker, ensuring clear audio quality.

Figure 2.8: Vibration Drainage Function
2.8 Bloqueig de tecles
Prevent accidental changes to settings by activating the key lock feature.

Figure 2.9: Key Lock Feature
2.9 High/Low Power Adjustment
Adjust the transmission power between High (for extended range) and Low (for longer battery life) as needed.

Figure 2.10: High/Low Power Adjustment
2.10 30 Channels
The radio supports 30 GMRS channels, allowing for flexible communication options.

Figure 2.11: 30 Available Channels
Vídeo 2.3: Acabatview of Retevis EZTalk 4S Features and Functions
3. Configuració
3.1 Instal·lació i càrrega de la bateria
- Assegureu-vos que la ràdio estigui apagada abans d'instal·lar o treure la bateria.
- Align the battery with the compartment on the back of the radio and press firmly until it clicks into place.
- To charge, connect the Type-C cable directly to the radio or place the radio in the charging dock. The LED indicator will show charging status.
- A full charge typically takes 3 hours via Type-C.
3.2 Attaching Belt Clip & Lanyard
- Enganxeu el clip del cinturó a la ranura designada a la part posterior de la ràdio.
- Thread the lanyard through the loop on the radio for secure carrying.
4. Instruccions de funcionament
4.1 Encès/Apagat
- Per encendre, premeu i manteniu premut Potència / menú botó fins que la pantalla s'il·lumini.
- Per apagar-lo, manteniu premut el botó Potència / menú botó fins que la pantalla s'apagui.
4.2 Selecció de canals
- Utilitza el Up i Avall arrow buttons to navigate through the available channels.
- Premeu el botó Menú button to confirm your selection or access further channel settings.
4.3 Ajust del volum
- The volume can typically be adjusted using the Up i Avall arrow buttons when not in menu mode.
4.4 Premeu per parlar (PTT)
- Per transmetre, premeu i manteniu premut el botó PTT botó situat al lateral de la ràdio. Parleu clarament al micròfon.
- Allibera el PTT botó per rebre.
4.5 Monitoring Channels (MON)
- Premeu el botó Dl button to temporarily disable squelch and listen for weak signals on the current channel.
4.6 Scanning Channels (SCAN)
- Premeu el botó ESCANEAR button to activate channel scanning. The radio will cycle through active channels.
- Premeu ESCANEAR de nou per aturar l'escaneig.
4.7 Ús de la llanterna
- Premeu breument Flashlight Key (refer to Figure 1.1) to cycle through white light, red light, and off.
4.8 Activating Emergency Alarm
- Premeu el botó dedicat Botó de trucada d'emergència (refer to Figure 1.1) to activate the emergency alarm.
4.9 Ràdio meteorològica de la NOAA
- Access NOAA weather channels through the menu to receive real-time weather updates and alerts. Consult the radio's on-screen menu for specific navigation.
4.10 Adjusting Power Level (High/Low)
- Navigate to the power setting in the menu to switch between High (Hi) and Low (Lo) transmission power.
4.11 Funció de bloqueig de tecles
- Manteniu premut el botó Scan/Lock button to lock or unlock the keypad. A lock icon will appear on the display when activated.
4.12 Vibration Drainage Function
- If the radio has been submerged, briefly press the side key (refer to Figure 1.1) to activate the vibration drainage function, which helps expel water from the speaker.
Video 4.1: Detailed Features and Operation of Retevis EZTalk 4S
5. Manteniment
5.1 Neteja
- Netegeu la ràdio amb un suau, damp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
- Assegureu-vos que tots els ports estiguin secs abans de carregar o utilitzar accessoris.
5.2 Emmagatzematge
- Guardeu la ràdio en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- If storing for extended periods, remove the battery.
5.3 Cura de la bateria
- Eviteu sobrecarregar o esgotar completament la bateria.
- Carregueu la bateria regularment, fins i tot si la ràdio no s'utilitza amb freqüència, per mantenir-ne l'estat.
6. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La ràdio no s'encén | Bateria baixa o gastada; bateria no instal·lada correctament | Carregueu la bateria; Torneu a instal·lar la bateria correctament |
| No es pot transmetre ni rebre | Incorrect channel; Out of range; Low battery; Squelch level too high | Verify channel settings; Move closer to other radios; Charge battery; Adjust squelch level |
| Mala qualitat d'àudio | Water in speaker; Out of range; Obstructions | Use vibration drainage; Move closer; Clear obstructions |
| El teclat no respon | Key lock is active | Deactivate key lock (refer to section 4.11) |
7. Especificacions
| Característica | Detall |
|---|---|
| Número de model | EZTalk 4S |
| Pes de l'article | 9.9 unces |
| Dimensions del producte | 1.61 "P x 2.44" W x 5.35" H |
| Bateries | Requereix 2 pila C (incloses) |
| Nombre de canals | 30 |
| Interval de freqüència | GMRS |
| Interval de conversa màxim | 3 milles (típic, varia segons el terreny) |
| Nivell de resistència a l'aigua | Impermeable IP68 |
| Voltage | 7.4 Volts |
| Característiques especials | 2000mAh rechargeable battery, Floating design, IP68 waterproof, Long Range GMRS, NOAA, Emergency Alarm, Type-C Charging |
8. Garantia i Suport
8.1 Informació de la garantia
Retevis provides a 2-year warranty for the radio body and a 1-year warranty for accessories. A 30-day no-reason return policy is also available.
8.2 Post-Warranty Service
Beyond the warranty period, maintenance services are still offered. Buyers are responsible for any corresponding costs.
8.3 Atenció al client
Per a qualsevol consulta o necessitat d'assistència, poseu-vos en contacte amb el servei d'atenció al client de Retevis a Amazon. Les respostes es proporcionen normalment en un termini de 12 hores.