Retevis FA9104JX20
Retevis H777H Two Way Radios User Manual
Model: FA9104JX20
Introducció
Thank you for choosing the Retevis H777H Two Way Radios. These compact, rechargeable walkie-talkies are designed for reliable communication in various professional environments, including manufacturing, healthcare, and education. Featuring a hidden display, USB-C charging, and hands-free VOX operation, the H777H provides intuitive and efficient communication. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new radios.

Imatge: Una completa view of twenty Retevis H777H two-way radios, each placed in its individual charging base, illustrating the complete package.
Configuració
1. Carregant la bateria
Before first use, fully charge the radio's battery. The Retevis H777H is equipped with a 1000mAh Lithium-Ion battery and supports convenient USB-C charging. A full charge typically takes approximately 3 hours.
- Connecteu el cable de càrrega USB-C al port de càrrega de la ràdio.
- Connecteu l'adaptador a una presa de corrent estàndard.
- The charging indicator on the radio will show charging status (refer to radio's specific LED behavior for details).

Image: A close-up of the Retevis H777H radio highlighting its 1000mAh battery capacity, along with icons indicating 12 hours of working time, 55 hours of standby time, and 3 hours of charging time.
2. Fixació del clip del cinturó
For convenient carrying, attach the provided belt clip to the back of the radio. Align the clip with the designated slots and slide it into place until it clicks securely.

Image: A person wearing the Retevis H777H radio with its belt clip, demonstrating its portability. An inset shows a close-up of the belt clip mechanism, and text indicates the radio's weight (116g) and dimensions (102*56*34mm excluding antenna).
Instruccions de funcionament
1. Encendre/apagar i control de volum
- To power on the radio, rotate the top-left knob clockwise until you hear a click.
- Continue rotating the same knob to adjust the volume.
- Per apagar-lo, gireu el botó en sentit antihorari fins que sentiu un clic.
2. Selecció de canals
The H777H radios feature 16 channels. To select a channel, rotate the top-right knob. The hidden display will show the current channel number.
3. Botó Prem per parlar (PTT).
To transmit, press and hold the large button on the side of the radio (PTT button). Speak clearly into the microphone. Release the button to listen.
4. Funcionament amb mans lliures de VOX
The VOX (Voice Operated Exchange) feature allows for hands-free transmission. When activated, the radio will automatically transmit when it detects your voice, eliminating the need to press the PTT button.
- Refer to the specific programming software or user guide for your radio model to enable and adjust VOX sensitivity.
- This feature is ideal for situations where your hands are occupied, such as in construction or manufacturing environments.

Image: A Retevis H777H radio on a desk with a security guard in the background, illustrating the VOX hands-free feature where voice is automatically transmitted without pressing the PTT key.
5. Alarma d'emergència
The radio is equipped with an emergency alarm function to alert team members in critical situations. Press the designated emergency alarm button (refer to your radio's button layout) to activate it.

Image: A Retevis H777H radio with an orange emergency alarm icon and a scene of a person in distress, indicating the radio's emergency alarm function to alert team members.
6. Hidden Display
The H777H features a hidden display that shows essential information such as battery level and current channel number, ensuring readability without being overtly visible.

Image: A close-up of the Retevis H777H radio highlighting its hidden display, which clearly shows battery and channel information.
7. One-Key Pairing
The one-key pairing feature simplifies the setup of your radio set, allowing for quick and seamless communication between devices. This increases teamwork and cooperation ability.

Image: Two Retevis H777H radios with a wavy line between them, illustrating the one-key pairing feature that increases teamwork and cooperation ability.
8. Strong Compatibility
The Retevis H777H radios are designed to be compatible with older H777 two-way radio models. This allows users to integrate new units with existing equipment, making operations more convenient.

Image: A central Retevis H777H radio surrounded by three older H777 models, connected by circular waves, demonstrating strong compatibility to stay connected conveniently.
Manteniment
Neteja
Netegeu la superfície de la ràdio amb un drap suauamp drap. No utilitzeu productes químics agressius ni netejadors abrasius. Assegureu-vos que el port de càrrega estigui lliure de pols i deixalles.
Cura de la bateria
To maximize battery life, avoid fully discharging the battery frequently. Recharge the radios regularly. If storing for extended periods, charge the battery to about 50% and store in a cool, dry place.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La ràdio no s'encén | Bateria baixa o gastada; instal·lació incorrecta de la bateria | Carregueu la bateria; Torneu a instal·lar la bateria correctament |
| Sense so ni volum baix | Volume too low; Incorrect channel; Speaker obstructed | Increase volume; Select correct channel; Clear speaker area |
| Interval de comunicació curt | Obstructions (buildings, terrain); Low battery; Interference | Move to open area; Recharge battery; Change channel |
| No es pot comunicar amb altres ràdios | Different channels; Different privacy codes (CTCSS/DCS); Radios not compatible | Ensure all radios are on the same channel and privacy code; Verify compatibility |
Especificacions
| Característica | Detall |
|---|---|
| Número de model | FA9104JX20 |
| Marca | Retevis |
| Color | Negre |
| Item Weight (20 Pack) | 14.72 lliures |
| Product Dimensions (per radio) | 1.25 x 2.34 x 4.49 polzades |
| Nombre de canals | 16 |
| Tipus de bateria | Ió de liti (1000 mAh) |
| Voltage | 3.7 Volts |
| Temps de treball | Fins a 12 hores |
| Temps d'espera | Fins a 55 hores |
| Temps de càrrega | Aproximadament 3 hores |
| Interval de freqüència | FRS |
| Nivell de resistència a l'aigua | No resistent a l'aigua |
| Característiques especials | Rechargeable, Lightweight, Emergency Alarm, Hidden Display, USB-C Charging, VOX Hands-Free, One-Key Pairing, Strong Compatibility |
| País d'origen | Xina |
Contingut del paquet
The Retevis H777H Two Way Radios package includes the following items:
- 20 x H777H Two Way Radios
- 20 x bateries
- 20 x clips de cinturó
- 20 bases de càrrega
- 20 cables de càrrega tipus C
- 20 adaptadors
- 20 x manuals d'usuari

Image: An organized display of all items included in the Retevis H777H package, featuring the radio, battery, belt clip, charging base, Type-C charging cable, adapter, and user manual.
Garantia i Suport
Retevis provides comprehensive customer support for the H777H Two Way Radios.
- Garantia: Es proporciona una garantia de 2 anys per a la carcassa de la ràdio i una garantia d'1 any per als accessoris.
- Devolucions: Gaudeix d'una política de devolució de 30 dies sense motiu.
- Atenció al client: For any inquiries or issues, please contact Retevis customer support on Amazon. Responses are typically provided within 12 hours.
- Servei posterior a la garantia: Maintenance services are available beyond the warranty period; corresponding costs may apply.
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