| 名称／型号 | RETRO NANO查看官网原文Name/Model：RETRO NANO |
| 硬件方案 | DAC: CS43131*2, USB, Bluetooth chip: QCC5125查看官网原文Hardware solution：DAC: CS43131*2, USB, Bluetooth chip: QCC5125 |
| 颜色 | Blue/白色查看官网原文Color：Blue/White |
| 音量调节 | Physical button查看官网原文Volume control：Physical button |
| 重量 | 约 28.3g (with battery)查看官网原文Weight：About 28.3g (with battery) |
| 尺寸 | 约 55.1×37.5×13.7mm |
| Driver-free mode (switch mode) | Supported查看官网原文Driver-free mode (switch mode)：Supported |
| Phone decoding (USB dongle mode) | Supported (switch work mode to Phone position)查看官网原文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查看官网原文Microphone function：Supports Bluetooth voice calls, built-in omnidirectional microphone + supports in-line control for CTIA mic |
| 声道平衡 | ＜0.2dB |
| 增益 | L/H |
| FiiO Control 功能 | Supports settings through the APP查看官网原文FIIO Control：Supports settings through the APP |
| Deep standby mode | If 不支持 connection, auto-enter standby mode after 5 minutes查看官网原文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查看官网原文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; 白色: LDAC; Green: aptX Adaptive查看官网原文Bluetooth codec indicator：Blue: SBC; Cyan: AAC; Purple: aptX/aptX LL; Yellow: aptX HD; White: LDAC; Green: aptX Adaptive |
| 蓝牙接收 (5.1) | AAC/SBC/aptX/aptX LL/aptX Adaptive/aptX HD/LDAC |
| 显示屏 | 0.96-inch TFT (80*160) bezel-less display查看官网原文Display：0.96-inch TFT (80*160) bezel-less display |
| 固件升级 | OTA upgrade, via FIIO Control查看官网原文Firmware upgrade：OTA upgrade, via FIIO Control |
| 按键 | Multifunction button*1; Play/Pause*1; Volume up*1; Volume down*1查看官网原文Buttons：Multifunction button*1; Play/Pause*1; Volume up*1; Volume down*1 |
| USB 接口 | USB Type-C (Charging/data transfer)查看官网原文USB：USB Type-C (Charging/data transfer) |
| 耳机输出 | Standard 3.5mm port查看官网原文Headphone output：Standard 3.5mm port |
| 平衡耳机输出 | Standard 4.4mm port查看官网原文Balanced headphone output：Standard 4.4mm port |
| 滑动开关 | Power switch*1查看官网原文Slide switch：Power switch*1 |
| 供电方式 | DC 5V ≥1A |
| 充电时间 | ≤2 hrs |
| Type of battery | 10440 lithium battery 3.7V查看官网原文Type of battery：10440 lithium battery 3.7V |
| Audio input | Bluetooth reception查看官网原文Audio input：Bluetooth reception |
| Bluetooth codec | AAC查看官网原文Bluetooth codec：AAC |
| 音量 | 22 level查看官网原文Volume：22 level |
| 增益 | High查看官网原文Gain：High |
