1. Introducció
This manual provides detailed instructions for the safe and efficient operation of your CASTOR iBELL FM820BT Portable FM Radio. This device features a Bluetooth speaker, a rechargeable battery, and supports USB and SD card MP3 playback. Please read this manual thoroughly before use and retain it for future reference.
2. Característiques del producte
- Portable Table Top FM Radio with 3-Band tuner (FM/AM/SW).
- Integrated Bluetooth Speaker for wireless audio streaming.
- USB port and SD Card Slot for MP3 audio file reproducció.
- Built-in dynamic speaker for clear audio output.
- Telescopic antenna for enhanced radio reception.
- High sensitivity receiver for improved signal capture.
- Built-in rechargeable battery for portable use.
3. Contingut del paquet
- CASTOR iBELL FM820BT Portable FM Radio Unit
- Bateria recarregable (preinstal·lada o separada)
- C-Type Charging Cable
4. Controls i Components

Figura 4.1: Controls del panell frontal
This image displays the front of the radio, highlighting the mode button, previous/next track buttons, and the tuning knob. The frequency display for FM, AM, and SW bands is also visible.

Figure 4.2: Side Panel Ports and Controls
This image shows the side of the radio, detailing the Volume knob, Power ON/OFF switch, DC 5V IN (C-Type Charging Port), Charge Indicator, Mode Selector (Music/FM/AM/SW), USB Port, and SD Card Slot.
- Interruptor d'encesa / apagat: Located on the side, slides to turn the unit on or off.
- Pom de volum: Rotates to adjust the audio output level.
- Botó de mode: Cycles through available modes: FM, AM, SW, Bluetooth, USB, SD.
- Botons anterior/següent: Used for navigating tracks in MP3 mode or scanning stations in radio mode.
- Pom d'afinació: Rotates to manually tune radio frequencies.
- Antena telescòpica: Extends for improved radio signal reception.
- Port USB: For connecting USB flash drives to play MP3 files.
- Ranura per a targeta SD: For inserting SD cards to play MP3 files.
- DC 5V IN (C-Type Charging Port): Connects the charging cable for battery recharge.
- Indicador de càrrega: Llum LED que indica l'estat de càrrega.
5. Configuració
5.1. Càrrega inicial
Before first use, fully charge the radio's built-in rechargeable battery. Connect the provided C-Type charging cable to the DC 5V IN port on the side of the radio and the other end to a compatible USB power adapter (not included). The charge indicator light will illuminate during charging. Once fully charged, disconnect the cable.
5.2. Encès / apagat
Slide the Power ON/OFF switch located on the side of the unit to the 'ON' position to power on the radio. Slide it to the 'OFF' position to power off.
6. Instruccions de funcionament
6.1. Mode de ràdio (FM/AM/SW)
- Enceneu la ràdio.
- Press the 'MODE' button repeatedly until the desired radio band (FM, AM, or SW) is selected.
- Extend the telescopic antenna for optimal FM and SW reception. For AM, the internal antenna is generally sufficient.
- Rotate the 'TUNING' knob to scan for radio stations.
- Adjust the 'VOLUME' knob to your preferred listening level.
6.2. Mode Bluetooth
- Enceneu la ràdio.
- Press the 'MODE' button until 'Bluetooth' mode is announced or indicated. The radio will enter pairing mode.
- Al dispositiu mòbil, activeu el Bluetooth i cerqueu els dispositius disponibles.
- Select 'FM820BT' from the list of devices to pair. A confirmation sound will indicate successful pairing.
- You can now play audio from your device through the radio's speaker. Use the radio's Previous/Next buttons or your device to control playback.
6.3. USB/SD Card MP3 Playback
- Enceneu la ràdio.
- Insert a USB flash drive into the 'USB' port or an SD card into the 'SD CARD SLOT' with MP3 audio files.
- The radio should automatically switch to USB or SD mode and begin playing the MP3 files. Si no és així, premeu el botó «MODE» per seleccionar la font correcta.
- Feu servir els botons Anterior/Següent per saltar pistes.
7. Manteniment
- Keep the unit dry. Avoid exposure to water or high humidity.
- Netegeu l'exterior amb un drap suau i sec. No utilitzeu productes de neteja abrasius ni dissolvents.
- No intenteu desmuntar la unitat. Encarregueu tot el manteniment a personal qualificat.
- Guardeu la ràdio en un lloc fresc i sec quan no la feu servir durant períodes prolongats.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Battery discharged; Power switch off. | Charge the battery; Slide power switch to ON. |
| Mala recepció de ràdio | Antena no estesa; Senyal feble; Interferències. | Extend the telescopic antenna; Reposition the radio; Try tuning manually. |
| Bluetooth no connectat | Radio not in Bluetooth mode; Device too far; Already paired with another device. | Ensure radio is in Bluetooth mode; Move device closer; Disconnect from other devices. |
| La reproducció per USB/SD no funciona | Incorrecte file format; USB/SD card not inserted correctly; Corrupted files. | Assegureu-vos files are MP3 format; Reinsert USB/SD card; Try a different USB/SD card. |
9. Especificacions
| Característica | Detall |
|---|---|
| Marca | CASTOR |
| Número de model | FM820BT |
| Color | NEGRE |
| Tecnologia de connectivitat | Bluetooth, USB |
| Dimensions del producte (L x A x A) | 18.5L x 7W x 12.5H centímetres |
| Pes | 800 grams |
| Tipus de sintonitzador | AM, FM |
| Bandes de ràdio compatibles | 3-Band (FM/AM/SW) |
| Font d'alimentació | Funciona amb bateria (recarregable) |
| Tipus de visualització | LED |
| Interfície del maquinari | USB |
10. Garantia i Suport
The CASTOR iBELL FM820BT comes with a 1-Year Warranty. This includes a 6-month standard warranty and an additional 6-month warranty upon free registration. Registration should be completed within 30 days from the date of purchase.
For warranty claims or technical support, please contact the manufacturer at:
- Contacte del fabricant: 1800-2020-860
- Assistència de garantia: 1800-2020-260




