1. Introdução
The FiiO DISC is a portable HiFi music player designed for high-quality audio playback. It features a slim aluminum body, a circular touchscreen, and advanced audio components to deliver an immersive listening experience. This manual provides essential information for setting up, operating, and maintaining your FiiO DISC.

Figure 1.1: FiiO DISC Portable HiFi Music Player in various colors.
2. Configuração
2.1. Desembalagem e carga inicial
Upon unboxing, ensure all components are present: the FiiO DISC player, a USB-C charging cable, and any included stickers. Before first use, fully charge the device using the provided USB-C cable connected to a compatible power adapter (not included).
2.2. Inserindo um cartão microSD
The FiiO DISC supports MicroSD cards up to 2TB for expanded music storage. Locate the MicroSD card slot on the side of the device. Gently insert the MicroSD card until it clicks into place. Ensure the card is inserted correctly to avoid damage.

Figure 2.1: MicroSD card slot for storage expansion up to 2TB.
2.3. Ligar / desligar
Press and hold the power button (usually located on the side or top) for a few seconds to power on or power off the device. A short press will typically turn the screen on/off or lock/unlock the device.
2.4. Seleção inicial do idioma
Upon first power-on, you may be prompted to select your preferred language. Follow the on-screen instructions to navigate and select English or your desired language.
3. Operating the FiiO DISC
3.1. Navegação por tela sensível ao toque
The FiiO DISC features a circular touchscreen for intuitive control. Swipe across the screen to navigate menus and tap icons to select options. The user interface includes customizable lock screens, screen savers, album art, and lyrics display.

Figure 3.1: Dynamic user interface on the FiiO DISC circular touchscreen.
3.2. Reprodução de música
- Navegação: Navigate to the 'Music' or 'Folders' section to browse your audio files.
- Reproduzir/Pausar: Tap the play/pause icon on the screen or use the dedicated physical buttons.
- Pular faixas: Use the forward/backward icons on the screen or physical buttons to skip tracks.
- Controle de volume: Adjust volume using the dedicated volume buttons on the device.
3.3. Conectividade Bluetooth
The FiiO DISC supports Bluetooth 5.4 with LDAC for high-quality wireless audio. To pair with Bluetooth headphones or speakers:
- Acesse o menu 'Configurações' e selecione 'Bluetooth'.
- Ligue o Bluetooth e coloque seu dispositivo externo no modo de emparelhamento.
- Select your device from the list of available devices to connect.

Figure 3.2: FiiO DISC demonstrating Bluetooth 5.4 with LDAC support.
3.4. Wired Headphone Outputs
The device is equipped with both 3.5mm single-ended and 4.4mm balanced headphone outputs. Connect your preferred wired headphones to the corresponding jack for optimal audio quality.

Figure 3.3: The FiiO DISC features both 3.5mm and 4.4mm headphone outputs.
3.5. USB Modes and Other Connectivity
The FiiO DISC supports various connectivity options:
- Modo DAC USB: Connect to a computer to use the FiiO DISC as an external DAC.
- Saída de áudio USB: Output audio digitally via USB to compatible devices.
- Coaxial Digital Output: For connecting to home audio systems.
- AirPlay: Transmita áudio sem fio de dispositivos Apple.
4. Principais características
- Premium Aluminum Alloy Body with Circular Touchscreen: The ultra-slim aluminum alloy body provides a refined, lightweight feel. The round touchscreen offers a rich UI with customizable lock screens, screen savers, album art, and lyrics display.
- Dual DAC Design with Dual Headphone Outputs: Equipped with dual CS43131 DACs and a balanced audio architecture, it delivers up to 280mW of output power through both 3.5mm single-ended and 4.4mm balanced headphone outputs.
- Bluetooth 5.4 with LDAC Support: Ensures fast, stable, and low-latency wireless connections with support for high-quality audio codecs like LDAC and SBC.
- Pure Music OS with Up to 2TB Storage Expansion: Powered by a dual-core X2000 controller and FiiO’s self-developed Linux-based pure music system, offering smooth operation and support for up to 2TB MicroSD card expansion.
- Até 12 horas de duração da bateria: The built-in 1450mAh battery provides up to 12 hours of continuous playback.
- Conectividade versátil: Supports USB DAC mode, USB Audio output, coaxial digital output, and AirPlay for seamless integration with various audio setups.

Figure 4.1: The FiiO DISC utilizes dual CS43131 DACs for high-fidelity audio.

Figure 4.2: The Ingenic X2000 dual-core chip powers the FiiO DISC's pure music OS.

Figure 4.3: The FiiO DISC offers up to 12 hours of battery life.
5. Manutenção
- Limpeza: Use um pano macio e seco para limpar o dispositivo. Evite usar produtos químicos agressivos ou materiais abrasivos.
- Armazenar: Store the FiiO DISC in a cool, dry place away from direct sunlight and extreme temperatures.
- Cuidados com a bateria: Para prolongar a vida útil da bateria, evite descarregar completamente o dispositivo com frequência. Carregue-o regularmente, mesmo que não o utilize por longos períodos.
6. Solução De Problemas
6.1. O dispositivo não liga
- Certifique-se de que o dispositivo esteja totalmente carregado. Conecte-o a uma fonte de energia e aguarde alguns minutos antes de tentar ligá-lo novamente.
- Try holding the power button for a longer duration (e.g., 10-15 seconds) to perform a hard reset.
6.2. Sem saída de som
- Check the volume level on the device and your connected headphones/speakers.
- Ensure headphones are properly connected to the correct output jack (3.5mm or 4.4mm).
- If using Bluetooth, verify that the device is correctly paired and connected to your audio output.
- Test with different headphones or speakers to rule out an issue with the audio output device.
6.3. Música Files Not Appearing
- Certifique-se de que o cartão MicroSD esteja inserido corretamente.
- Verifique se a música fileOs arquivos estão em um formato compatível.
- Perform a music library scan through the device's settings.
6.4. Problemas de emparelhamento Bluetooth
- Ensure both the FiiO DISC and the target Bluetooth device are in pairing mode.
- Aproxime os dispositivos um do outro para garantir que estejam dentro do alcance.
- Forget previous pairings on both devices and attempt to pair again.
7. Especificações
| Recurso | Detalhe |
|---|---|
| Marca | FiiO |
| Nome do modelo | DISCO |
| Número do modelo do item | F5381D |
| Tecnologia de Conectividade | Aux, Bluetooth |
| Recurso especial | Áudio de alta resolução |
| Cor | Blue (other variants available) |
| Tamanho da tela | 1.8 polegadas |
| Dispositivos compatíveis | Fones de ouvido |
| Bateria | 1450mAh (até 12 horas de reprodução) |
| Expansão de armazenamento | Cartão microSD de até 2 TB |
| DACs | CS43131 duplo |
| Potência de saída | Até 280mW |
| Sistema operacional | Linux-based pure music system |
| Peso do item | 5.9 onças |
| Dimensões da embalagem | 11.46 x 4.06 x 1.22 polegadas |
8. Garantia e suporte
Para informações sobre garantia e suporte técnico, consulte o site oficial da FiiO. webou entre em contato com o serviço de atendimento ao cliente. Guarde o comprovante de compra para eventuais solicitações de garantia.
Visit the official FiiO Store for more information: Loja FiiO





