| Main Unit |
| Name / Model No. |
M9 |
Operating System |
Customized |
| CPU model |
Exynos 7270 14nm |
No. of cores |
2 |
| CPU operating frequency |
1GHz |
DAC |
AK4490EN×2 |
| Keyboard |
Virtual QWERTY keyboard |
Input method |
Multi-touch screen |
| Special features |
LDAC，HWA，Gesture operation，WiFi Streaming，RGB indicator for different formats，Bi-directional Bluetooth，8-layer HDI PCB |
User interface |
Customized/FiiO Music |
| Chips used |
SoC: Samsung Exynos 7270，DAC：AK4490EN*2，FPGA：A3P030，LPF：OPA1612，BUF：OPA1622*2
Bluetooth chip：SAMSUNG S5N5C10B01-6330 |
| Connectivity |
| WiFi |
2.4G，WiFi transmission supported |
Bluetooth |
4.2 |
| USB |
TYPE C Two-way USB2.0 |
Bluetooth transmit |
LDAC/aptX/aptX HD/SBC（Available when playing on M9 or using M9 as USB DAC） |
| HWA（LHDC） |
Available when playing on M9 or using M9 as USB DAC |
Bluetooth receive |
SBC/LDAC (required to update to the latest firmware) |
| AirPlay |
Supported (required to update to the latest firmware) |
DLNA |
Supports Windows for now, will support more in the future |
| FiiO Link |
Supported (required to update to the latest firmware) |
|
|
| Display screen |
| Display size |
3.2 inches |
Number of colours |
16M |
| Display type |
LG IPS screen |
Viewable angle |
Full-view |
| Resolution |
480×800 |
Pixel density(PPI) |
292 |
| Touchscreen |
5-finger multi-touch |
|
|
| Storage |
| RAM |
768MB |
ROM |
4GB |
| Storage expansion type |
Micro SD card |
ROM available to user |
2GB |
| Maximum storage expansion |
Theoretically 2TB (only one micro SD card slot) |
|
|
| Buttons and ports |
| Buttons |
Physical button+Side volume scroll+Touch screen |
Button customization |
N/A |
| Headphone out (PO) |
3.5 mm headphone jack+2.5mm balanced headphone jack |
USB |
Two-way TYPE C USB2.0（Charging/Data transmisson/USB DAC/USB Audio） |
| Line out (LO) |
3.5 mm port（shared PO） |
SPDIF output |
3.5mm port（shared PO） |
| General |
| Color |
Black / Silver |
Dimensions |
60mm*106mm*13.3mm |
| Weight |
about 133g |
Volume control |
120 steps +/- button control |
| Recommended headphone impedance |
16~300Ω |
Equalizer |
10-band EQ (±6dB), 9 presets+custom preset |
| Treble control |
N/A |
Bass boost |
N/A |
| Balance control |
±5dB |
Gain control |
L/H |
| USB DAC |
Asynchronous 192kHz/32bit |
USB Audio |
DSD64/128，DoP/D2P |
| Power specifications |
| USB power adapter |
DC 5V/2A recommended |
Battery capacity |
2350mAh Li-polymer battery |
| Charging indication |
Large charging icon shows on display when it's off, small charging icon shows on upper right of display when it's on |
Charging time |
＜2h（DC5V/2A） |
| Battery indication |
Yes (accurate battery % readings) |
Deep sleep time |
45 days |
| Battery Life & Test Conditions |
| 3.5mm headphone output：＞10h |
| Volume |
46 |
Load |
M3 open earbuds (27 Ω) |
| Screen |
OFF |
Test File |
MP3 44.1kHz/16bit |
| EQ |
OFF |
|
|
| 2.5mm balanced output：＞9h |
| Volume |
48 |
Load |
M3 open earbuds (27 Ω) |
| Screen |
OFF |
Test File |
MP3 44.1kHz/16bit |
| EQ |
OFF |
|
|
| Bluetooth output：＞30h（SBC） |
|
|
|
| Volume |
60 |
Load |
BTR1+FH1 |
| Screen |
OFF |
Test File |
MP3 44.1kHz/16bit |
| Others |
| Firmware Upgrade |
Supports both via zip file and OTA
(*The product uses GPLv2 compliant firmware.)
|
Font size |
N/A |
| Firmware Upgrade |
Supported |
Third-party apps support |
Can install whitelisted third-party music streaming apps |
| Line output specifications |
| THD+N |
＜0.002%（1kHz/10kΩ） |
SNR |
≥117dB (A-weighted) |
| Frequency response |
5Hz~80 kHz（-3dB） |
Noise floor |
＜5uV |
| Channel separation |
＞105dB |
Line level |
2V |
| Headphone out specifications 1（3.5mm port） |
| Output power 1 |
≥125mW（16Ω / THD+N＜1%) |
Output impedance |
＜2Ω |
| Output power 2 |
≥170mW（32Ω /THD+N＜1%) |
THD+N |
＜0.002%（1kHz/32Ω） |
| Output power 3 |
≥19mW（300Ω / THD+N＜1%) |
Separation |
＞72dB |
| Frequency response |
5Hz~80 kHz（-3dB） |
Peak output voltage |
6.5Vp-p |
| SNR |
≥118dB (A-weighted) |
Noise floor |
＜5uV |
| Headphone out specifications 2（2.5mm port） |
| Output power 1 |
≥125mW（16Ω / THD+N＜1%) |
Output impedance |
＜2Ω |
| Output power 2 |
≥195mW（32Ω /THD+N＜1%，balanced turbo off)
≥220mW（32Ω /THD+N＜1%，balanced turbo on) |
THD+N |
＜0.002%（1kHz/32Ω） |
| Output power 3 |
≥24mW（300Ω / THD+N＜1%，balanced turbo off)
≥77mW（300Ω / THD+N＜1%，balanced turbo on) |
Separation |
＞98dB |
| Frequency response |
5Hz~80 kHz（-3dB） |
Peak output voltage |
7.07Vp-p |
| SNR |
≥113dB (A-weighted) |
Noise floor |
＜10uV |
| File format support |
| Lossless: |
DSD：DSD64，128（iso”“.dsf”,“.dff”）
APE(Fast): 192 kHz/24 bit
APE(Normal): 192 kHz/24 bit
APE (High): 192kHz/24 bit
APE (Extra High): 48kHz/24 bit
APE (Insane): 48kHz/24 bit
FLAC: 192 kHz/24 bit
WAV: 192 kHz/64 bit
Aiff：192 kHz/24 bit
Aif:192 kHz/24 bit
WMA Lossless: 96 kHz/24 bit
Apple Lossless: 192 kHz/24 bit |
| Lossy compression: |
MP3，OGG，WMA，AAC... |
