1. Introdução
This manual provides detailed instructions for the proper use and maintenance of your Sandberg Pocket Radio FM+AM Recharge, Model 421-02. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
2. Produto acabadoview
The Sandberg Pocket Radio is a compact, portable device designed for receiving FM and AM radio broadcasts. It features a built-in rechargeable battery and a digital display for easy tuning.

Figura 1: Frente view of the Sandberg Pocket Radio, displaying the frequency and controls.

Figure 2: The radio connected to the included earphones, which also function as the FM antenna.
Conteúdo da embalagem:
- 1 x Sandberg Pocket Radio FM+AM Recharge (Model 421-02)
- 1 x fone de ouvido
- 1 x Charging cable (USB-A to USB-C, 50 cm)
3. Configuração
3.1 Carregando a bateria
- Connect the small end of the included USB-C charging cable to the charging port on the radio.
- Connect the standard USB-A end of the cable to a USB power adapter (not included) or a computer's USB port.
- The radio's display will indicate charging status. A full charge typically takes a few hours.
- Disconnect the charging cable once the battery is fully charged.
3.2 Conectando os fones de ouvido
The included earphones are essential for operation as they serve as the antenna for FM reception. Without them, FM reception will be severely limited or non-existent.
- Insert the 3.5mm jack of the earphones into the earphone port on the radio.
- Certifique-se de que a conexão seja segura.
4. Instruções de operação
4.1 Ligar/Desligar
- To power on the radio, press and hold the Power/Mode (ⓘ/M) button for approximately 2-3 seconds. The display will light up.
- To power off the radio, press and hold the Power/Mode (ⓘ/M) button again for approximately 2-3 seconds. The display will turn off.
4.2 Mode Selection (FM/AM)
- While the radio is powered on, short press the Power/Mode (ⓘ/M) button to switch between FM and AM radio bands. The current band will be indicated on the display.
4.3 Estações de Sintonia
- Digitalização automática: To automatically scan for and store available stations, press and hold the Search (⌕) button. The radio will scan through the frequency range and save stations with strong signals.
- Sintonia manual: To manually tune to a specific frequency, short press the Para cima (▲) or Para baixo (▼) buttons to adjust the frequency incrementally.
4.4 Controle de volume
- Para aumentar o volume, pressione o botão Aumentar volume (+) botão.
- Para diminuir o volume, pressione o botão Volume baixo (-) botão.
4.5 Informações de Exibição
The digital display shows the current radio band (FM or AM), the tuned frequency, and the battery level indicator.
5. Manutenção
5.1 Limpeza
- Limpe a parte externa do rádio com um pano macio e seco.
- Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the surface.
- Evite a entrada de umidade em qualquer abertura.
5.2 Cuidados com a bateria
- Para prolongar a vida útil da bateria, evite descarregá-la completamente com frequência.
- Guarde o rádio em local fresco e seco quando não estiver em uso por longos períodos.
- Recarregue a bateria periodicamente se ela ficar armazenada por um longo período para evitar descarga completa.
6. Solução De Problemas
- Sem energia: Ensure the battery is charged. Connect the radio to a power source using the USB-C cable.
- Sem som: Check that the earphones are securely plugged in. Adjust the volume using the Aumentar volume (+) botão.
- Recepção FM ruim: Ensure the earphones are fully plugged in, as they function as the FM antenna. Try repositioning the radio or the earphone cable for better signal.
- Cannot Save Favorite Stations: This model does not support saving favorite radio stations. Stations are found via automatic scan or manual tuning each time.
- Tela não funciona: If the display is blank or flickering, try recharging the battery. If the issue persists, contact customer support.
7. Especificações
| Recurso | Especificação |
|---|---|
| Número do modelo | 421-02 |
| Faixa de Freqüência AM | 522-1710 KHz (9KHz) / 520-170KHz (10KHz) |
| Faixa de frequência FM | 76-108 MHz |
| Sensibilidade AM | <20mV/m |
| FM Signal to Noise Ratio | >40 dB |
| Potência máxima de saída | 6.5mW |
| Capacidade da bateria | 5000 mAh, 3.7V (1.85 Wh) |
| Tecnologia de Conectividade | Auxiliary (for earphones/antenna) |
| Fonte de energia | Alimentado por bateria |
| Peso do item | 60 gramas (2.12 onças) |
8. Garantia e Suporte
Sandberg products are manufactured to high quality standards. For information regarding warranty terms and conditions, or for technical support, please refer to the official Sandberg webou entre em contato diretamente com o serviço de atendimento ao cliente. Guarde o comprovante de compra como prova de aquisição.





