1. Product Overview
The FiiO M5 is a compact, high-resolution digital audio player designed for exceptional sound quality and versatile functionality. Featuring an AK4377 32bit/384kHz DAC chip and Bluetooth aptX HD/LDAC support, it delivers a premium audio experience. Its mini touchscreen and robust feature set make it an ideal companion for music enthusiasts.

Image: The FiiO M5 portable music player, a compact device with a touchscreen, held in a hand.
2. Key Features
- High-Performance Audio: Ingenic X1000E processor with AK4377 32bit/384kHz DAC chip for superb audio quality.
- Advanced Bluetooth: Flagship CSR8675 chip with Bluetooth transmitting and receiving, supporting aptX HD/LDAC.
- Versatile Connectivity: Asynchronous USB DAC, USB audio out, and support for PO/LO/SPDIF output.
- Dual Microphone: Enables calls and sound recordings.
- User-Friendly Design: CNC + 2.5D glass, touchscreen gestures, customizable screen orientation.
- Long Battery Life: Approximately 11 hours of playback and 22 days of deep sleep standby.
- Expandable Storage: Micro-SD card support up to 2TB.
- Additional Functions: Step counter/pedometer function.

Image: A grid illustrating key features of the FiiO M5, including processor, DAC, Bluetooth chip, battery life, and storage capacity.
3. Device Layout
Familiarize yourself with the physical components of your FiiO M5.
3.1 Top Panel

Image: Close-up of the FiiO M5's top panel, showing the headphone jack, volume rocker, and power button.
- Headphone Output/Coaxial Output: 3.5mm port for headphones or digital coaxial output.
- Microphones: Dual microphones for calls and sound recordings.
- Power/Screen On/Off Button: Controls power and screen status.
3.2 Bottom Panel

Image: Close-up of the FiiO M5's bottom panel, showing the USB Type-C port and microSD card slot.
- USB Type-C Port: For charging, data transfer, and USB DAC functionality.
- MicroSD Card Slot: For expandable storage up to 2TB.
3.3 Back Panel

Image: The back panel of the FiiO M5, displaying the FiiO logo, Hi-Res Audio certifications, model number, input voltage, and regulatory compliance marks.
4. Setup
4.1 Inserting a MicroSD Card
The FiiO M5 supports microSD cards up to 2TB for storing your music. Insert the card into the microSD card slot on the bottom panel until it clicks into place.
4.2 Transferring Music
To transfer music from your computer to the M5:
- Ensure a microSD card is inserted into the M5.
- Connect the M5 to your computer via the USB Type-C cable.
- On the M5, select 'Storage Mode' when prompted for USB mode.
- Your computer should recognize the M5 as an external drive. You can then drag and drop music files to the microSD card.
5. Operating Instructions
5.1 Touchscreen Gestures
- Swipe Right from Left Edge: Returns to the previous screen or exits the current application.
- Swipe Down from Top Edge: Accesses the Drop-down menu for quick access to now playing screen, previous/next track, play/pause, and screen brightness adjustment.
- Swipe Left from Right Edge (on song/file list): Displays menu operations such as batch song deletion, adding to favorites, or playlists.
- Swipe Left/Right (on cover display): Switches to previous/next track.
- Swipe Top/Bottom (on cover display): Displays the volume adjustment page.
5.2 Button Operations
- In Player Mode (Screen On):
- Hold or press the volume button briefly to adjust volume.
- Press the power button briefly to turn the screen off/on.
- In Player Mode (Screen Off/Lock Screen):
- Press the volume button briefly to adjust volume.
- Hold the volume button to skip to next or previous track.
- Press the power button briefly to turn the screen off/on.
- In Bluetooth Receive Mode:
- Press the volume button briefly to adjust volume.
- Hold the volume button to play next or previous track.
- Press the power button briefly to play/pause.
- Double-click the power button to turn the screen off/on.
5.3 Now Playing Screen
The default now playing screen displays track information, play/pause, and playback mode. Swipe left to right to access the playing progress screen, where you can drag the progress bar for fast forward/rewind, delete songs, view detailed information, and access the EQ page. Swipe again to view lyrics. Click the blank space on these pages to switch to the album cover display.
5.4 Bluetooth Functionality
The FiiO M5 supports both Bluetooth transmitting and receiving.
5.4.1 Bluetooth Transmitting Operation
Video: Demonstrates how to enable and use the Bluetooth transmitting function on the FiiO M5, allowing it to send audio to Bluetooth headphones or speakers.
5.4.2 Bluetooth Receiving Operation
Video: Illustrates the steps to activate Bluetooth receiving on the FiiO M5, enabling it to act as a Bluetooth DAC for other devices.
5.5 USB Audio and DAC Functionality
The FiiO M5 can function as an asynchronous USB DAC when connected to a computer, providing high-quality audio output. It also supports USB audio out to other compatible devices.
5.5.1 OTG Function Operation
Video: A guide on how to use the OTG (On-The-Go) function of the FiiO M5, demonstrating its capability to connect to external USB devices.
5.6 Calls and Sound Recordings
Utilize the dual microphones for making calls when connected via Bluetooth or for recording audio directly on the device.

Image: A person wearing in-ear monitors connected to the FiiO M5, illustrating the device's capability for clearer calls with cVc technology.
5.7 Equalizer Settings
Customize your sound experience using the built-in equalizer. Access it through the now playing screen by swiping left from the right edge.

Image: The FiiO M5 screen displaying equalizer settings with various sound profiles like Rock, Classical, and Jazz.
6. Maintenance
6.1 Battery Life
The FiiO M5 offers approximately 11 hours of continuous music playback and up to 22 days in deep sleep standby mode.
6.2 Firmware Upgrade
Keeping your device's firmware updated ensures optimal performance and access to new features.
6.2.1 Firmware Upgrade (M5 On)
- Copy the firmware file to the root directory of the Micro SD card.
- Go to System Settings and click 'System Upgrade'.
6.2.2 Firmware Upgrade (M5 Off)
- Copy the firmware file to the root directory of the Micro SD card.
- Turn off the M5.
- Hold the volume up button and power button simultaneously to enter upgrade mode. Release the buttons once in upgrade mode.
Video: A step-by-step demonstration of how to perform a firmware upgrade on the FiiO M5 music player.
7. Troubleshooting
- Bluetooth Connection Issues with Car Systems: When operating as a Bluetooth transmitter, the M5 might encounter difficulties connecting with certain car Bluetooth audio systems. This is a known compatibility limitation.
- Device Not Recognized by Computer: Ensure the M5 is set to 'Storage Mode' after connecting via USB. Check the USB cable and port for proper function.
- Screen Unresponsive/Freezing: Try restarting the device by holding the power button. If the issue persists, a system restore might be necessary (refer to System Settings).
8. Specifications
| Feature | Value |
|---|---|
| Product Dimensions | 1.65 x 1.69 x 0.51 inches |
| Item Weight | 1.34 ounces |
| Manufacturer | FiiO |
| Item Model Number | M5 |
| Batteries | 1 Lithium Polymer battery required (included) |
| Brand | FiiO |
| Model Name | m5 |
| Special Feature | Bluetooth |
| Connectivity Technology | Bluetooth, USB |
| Memory Storage Capacity | 2 TB (via microSD) |
| Color | Black |
| Screen Size | 1.54 Inches |
| Compatible Devices | Laptop, Headphone, Earphone |
| Media Type | USB |
| Included Components | USB Cable |
9. Warranty and Support
For warranty information and technical support, please refer to the official FiiO website or contact their customer service directly. Keep your proof of purchase for any warranty claims.
Visit the FiiO Store on Amazon for more products and information.





