| General Specifications |
| Name/Model |
RETRO NANO |
Hardware solution |
DAC: CS43131*2, USB, Bluetooth chip: QCC5125 |
| Color |
Blue/White |
Volume control |
Physical button |
| Weight |
About 28.3g (with battery) |
Dimensions |
About 55.1×37.5×13.7mm |
| Driver-free mode (switch mode) |
Supported |
Phone decoding (USB dongle mode) |
Supported (switch work mode to Phone position) |
| Microphone function |
Supports Bluetooth voice calls, built-in omnidirectional microphone + supports in-line control for CTIA mic |
Channel balance |
＜0.2dB |
| Gain |
L/H |
FIIO Control |
Supports settings through the APP |
| Deep standby mode |
If no connection, auto-enter standby mode after 5 minutes |
Status indicator |
Display indicates the transmission codec, charging, battery level, volume, sampling rate, EQ, and menu |
| Bluetooth codec indicator |
Blue: SBC; Cyan: AAC; Purple: aptX/aptX LL; Yellow: aptX HD; White: LDAC; Green: aptX Adaptive |
Bluetooth reception (5.1) |
AAC/SBC/aptX/aptX LL/aptX Adaptive/aptX HD/LDAC |
| Display |
0.96-inch TFT (80*160) bezel-less display |
Firmware upgrade |
OTA upgrade, via FIIO Control |
| Adaptive impedance |
PO: 8~150Ω |
Max. supported sampling rate |
PCM: Up to 96kHz/16bit |
| BAL: 8~350Ω |
Removable battery |
Either power supplied by the battery of USB plug and play |
| Buttons and Ports |
| Buttons |
Multifunction button*1; Play/Pause*1; Volume up*1; Volume down*1 |
USB |
USB Type-C (Charging/data transfer) |
| Headphone output |
Standard 3.5mm port |
Balanced headphone output |
Standard 4.4mm port |
| Slide switch |
Power switch*1 |
|
|
| Power Supply Parameters |
| Power supply |
DC 5V ≥1A |
Charging time |
≤2 hrs |
| Type of battery |
10440 lithium battery 3.7V |
|
|
| Battery Life and Test Conditions |
| 3.5mm headphone out: ≥7.5h |
| Audio input |
Bluetooth reception |
Bluetooth codec |
AAC |
| Volume |
22 level |
Gain |
High |
| Display status |
Off |
Playing track and format |
MP3 44.1kHz/16bit |
| EQ |
Off |
Load |
32Ω |
| 4.4mm balanced headphone out: ≥7.5h |
| Audio input |
Bluetooth reception |
Bluetooth codec |
AAC |
| Volume |
19 level |
Gain |
High |
| Display status |
Off |
Playing track and format |
MP3 44.1kHz/16bit |
| EQ |
Off |
Load |
32Ω |
| 3.5mm headphone out: ≥9h |
| Audio input |
USB dongle mode (switch to Phone mode) |
Gain |
High |
| Volume |
22 level |
Playing track and format |
44.1kHz/16bit |
| Display status |
Off |
Load |
32Ω |
| EQ |
Off |
|
|
| 4.4mm balanced headphone out: ≥9h |
| Audio input |
USB dongle mode (switch to Phone mode) |
Gain |
High |
| Volume |
19 level |
Playing track and format |
44.1kHz/16bit |
| Display status |
Off |
Load |
32Ω |
| EQ |
Off |
|
|
| Audio Parameters |
| Performance and parameters of headphone output (3.5mm, UAC decoding) |
| Output power |
L+R≥120mW+120mW (16Ω, THD+N＜1%) |
Output impedance |
＜0.3Ω |
| L+R≥100mW+100mW (32Ω, THD+N＜1%) |
Crosstalk |
≥75dB |
| L+R≥10mW +10mW (300Ω, THD+N＜1%) |
Output amplitude |
1.75Vrms |
| THD+N |
＜0.0018% (1kHz/-4dB@32Ω) |
SNR |
≥125dB (A-weighted) |
| Frequency response |
20Hz~40kHz: attenuation＜3dB |
Noise floor |
＜1uV (A-weighted) |
| 20Hz~20kHz: attenuation＜0.1dB |
Peak output voltage |
5Vpp |
| Performance and parameters of balanced headphone output (4.4mm, UAC decoding) |
| Output power |
L+R≥130mW+130mW (16Ω, THD+N＜1%) |
Output impedance |
＜0.3Ω |
| L+R≥220mW+220mW (32Ω, THD+N＜1%) |
Crosstalk |
≥124dB |
| L+R≥55mW+55mW (300Ω, THD+N＜1%) |
Output amplitude |
2.7Vrms |
| THD+N |
＜0.0018% (1kHz/-6dB@32Ω) |
SNR |
≥128dB (A-weighted) |
| Frequency response |
20Hz~40kHz: attenuation＜3dB |
Noise floor |
＜1uV (A-weighted) |
| 20Hz~20kHz: attenuation＜0.1dB |
Peak output voltage |
7.5Vpp |
