1. Uvod
Thank you for choosing the Retevis RB639P Mini Two-Way Radio. This manual provides essential information for the safe and efficient use of your device. Please read it thoroughly before operating the radio and keep it for future reference.
2. Sigurnosne informacije
Uvijek se pridržavajte sljedećih osnovnih sigurnosnih mjera opreza kako biste smanjili rizik od požara, strujnog udara i ozljeda:
- Ne koristite radio u eksplozivnim atmosferama (npr. zapaljivi plinovi, čestice prašine, metalni prah).
- Ne otvarajte radio casing. Repairs should only be performed by qualified technicians.
- Koristite samo odobrene baterije i punjače.
- Držite radio dalje od vode i vlage.
- Izbjegavajte dugotrajno izlaganje direktnoj sunčevoj svjetlosti ili visokim temperaturama.
- Nemojte koristiti radio ako je antena oštećena.
3. Sadržaj paketa
The Retevis RB639P package includes:
- 4 x Retevis RB639P Radio
- 4 x Bežične slušalice
- 4 x kopča za pojas
- 2 x Type-C One-to-Two Charging Cable
- 1 x Uputstvo za upotrebu

Figure 3.1: Included components of the Retevis RB639P package.
4. Proizvod je gotovview
The Retevis RB639P is a compact and portable mini two-way radio designed for convenient communication. It features a slim design, VOX function, and USB-C charging.
4.1. Radio komponente

Figure 4.1: The ultra-slim design of the RB639P, measuring 18mm in thickness.

Figure 4.2: Multi-functional menu button with VOX, Bluetooth, Call Tone, and Roger Beep indicators.
5. Podešavanje
5.1. Punjenje baterije
The RB639P radio is equipped with a 1000 mAh rechargeable Li-ion battery. Before first use, fully charge the battery.
- Connect the Type-C charging cable to the radio's USB-C port.
- Connect the other end of the cable to a USB power source (e.g., USB adapter, PC, power bank, vehicle charger).
- The charging indicator will show the charging status. A full charge typically takes about 3 hours.

Figure 5.1: Various Type-C charging methods for the RB639P.

Slika 5.2: Specifikacije i karakteristike baterije.
5.2. Pričvršćivanje kopče za remen
Align the belt clip with the designated slots on the back of the radio and slide it down until it clicks into place.
5.3. Connecting the Wireless Headset
The RB639P supports wireless headset connection for hands-free operation.
- Ensure both the radio and the wireless headset are powered on.
- Follow the headset's instructions to enter pairing mode.
- On the radio, activate Bluetooth pairing via the multi-functional menu button (refer to Figure 4.2).
- Once paired, the headset will connect automatically when both devices are on and within range.

Figure 5.3: Wireless headset connection for hands-free use.
6. Operacija
6.1. Uključivanje/isključivanje
Da biste uključili radio, okrenite dugme za napajanje/jačinu zvuka u smjeru kazaljke na satu. Da biste isključili, okrenite ga suprotno od smjera kazaljke na satu dok ne klikne.
6.2. Odabir kanala
The RB639P has 16 channels. Rotate the channel selector knob to choose your desired channel. Ensure all radios in your group are on the same channel for communication.
6.3. Podešavanje jačine zvuka
Okrenite dugme za napajanje/jačinu zvuka da biste podesili jačinu zvuka slušanja.
6.4. Slanje i primanje
Za odašiljanje, pritisnite i držite dugme PTT (Pritisni za razgovor) sa strane radio-stanice. Govorite jasno u mikrofon. Otpustite dugme PTT za prijem.
6.5. VOX funkcija (Glasovno upravljana centrala)
The VOX function allows for hands-free transmission without pressing the PTT button. To activate/deactivate VOX:
- Press the multi-functional menu button (refer to Figure 4.2).
- Use the + button to navigate to the VOX setting.
- Press the menu button again to confirm activation or deactivation.

Figure 6.1: Hands-free operation using the VOX function and wireless headset.
6.6. Emergency Alarm Function
The RB639P includes an emergency alarm feature for critical situations.
- To activate the emergency alarm, press and hold the designated emergency button (often a side button, refer to your specific radio's button layout).
- The radio will emit a loud alarm sound.
- To deactivate, press the PTT button.

Figure 6.2: Emergency alarm feature for enhanced safety.
7. Održavanje
7.1. Održavanje baterije
- Izbjegavajte prekomjerno punjenje ili potpuno pražnjenje baterije.
- Čuvajte bateriju na hladnom i suvom mestu kada nije u upotrebi.
- Ako radio nećete koristiti duži period, izvadite bateriju.
7.2. Čišćenje radija
- Obrišite radio mekom, damp tkanina.
- Ne koristite jake kemikalije ili abrazivna sredstva za čišćenje.
- Provjerite je li poklopac USB-C priključka sigurno zatvoren kako biste održali vodootpornost.
8. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Radio se ne uključuje | Slaba baterija; Baterija nije pravilno instalirana | Charge the battery; Reinstall the battery |
| Ne može se slati ili primati | Incorrect channel; Out of range; Low battery | Verify channel settings; Move closer to other radios; Charge the battery |
| Loš kvalitet zvuka | Low battery; Obstructions; Volume too low/high | Charge the battery; Move to an open area; Adjust volume |
| Wireless headset not connecting | Not paired; Out of range; Headset battery low | Re-pair headset; Move closer; Charge headset battery |
9. Specifikacije
| Feature | Detalj |
|---|---|
| Broj modela | RB639P |
| Brand | Retevis |
| Boja | Crna |
| Broj kanala | 16 |
| Frekvencijski opseg | 446.00625-446.19375 MHz (PMR446) |
| Maksimalni domet razgovora | 3 kilometra |
| Vrsta baterije | Litijum-jonska (1000 mAh) |
| Trajanje baterije | 11 sata |
| Vrijeme punjenja | Pribl. 3 sati |
| Način punjenja | USB-C |
| Voltage | 3.7 Volts |
| Nivo vodootpornosti | Vodootporan (IP67) |
| Dimenzije proizvoda (D x Š x V) | 1.8 x 5.5 x 16.8 cm |
| Težina | 200 grama |
| Posebne karakteristike | Light and thin, VOX, Bluetooth |
| Kompatibilni uređaji | Slušalice |
| Temperaturni opseg | -20~+55°C |
10. Garancija i podrška
Retevis offers a 2-year warranty on the radio body and a 1-year warranty on accessories. Additionally, there is a 30-day no-reason return policy. After the warranty period, maintenance services are still available, with buyers responsible for associated costs.
For any inquiries or support, please contact us via Amazon. We aim to respond within 12 hours.
11. Videozapisi proizvoda
There are no official product videos specifically for the Retevis RB639P model available in the provided data.