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| FiiO Snowsky Retro Nano Bluetooth DAC and Headphone Amplifier Specifications | |
| Bluetooth Chip | QCC5125 (CPU+DSP Dual-Core Architecture) |
| DAC | Dual CS43131 |
| Bluetooth Version | 5.1 |
| Bluetooth Codecs | AAC, SBC, aptX, aptX LL, aptX Adaptive, aptX HD, LDAC |
| USB DAC | Driver-Free Up to PCM 96k |
| Display | 0.96-inch 80x160 Color IPS |
| Headphone Outputs | Single-ended 3.5mm + Balanced 4.4mm |
| In-Line Controls | Supports Microphone, Volume Adjustment, and Play/Pause (CTIA Protocol) |
| Color | White / Blue |
| Dimensions | 55.1 × 37.5 × 13.7 mm |
| Weight | 28.3g (Including Battery) |
| Power Supply | DC 5V-1A |
| Battery | 3.7V Rechargeable Lithium (Compatible with Similar 10440 Batteries, Not Compatible with AAA 1.5V Batteries) |
| Charging Time | ≤2 Hours |
| Battery Life | About 7.5 Hours (Single Battery) |
| Output Power (Single-Ended 3.5mm) | L+R ≥ 100mW + 100mW @ 32Ω (THD+N <1%) |
| Output Power (Balanced 4.4mm) | L+R > 220mW + 220mW @ 32Ω (THD+N <1%) |
| Frequency Response | 20Hz - 40kHz (-3dB) |
| SNR (Signal-to-Noise Ratio) | ≥128dB (A-weighted) |
| Noise Floor | PO <1µV (A-weighted); BAL <1µV (A-weighted) |
| Output Impedance | <0.3Ω @ 32Ω Load |
| THD+N (Total Harmonic Distortion + Noise) | <0.0018% (1kHz / -4dB @ 32Ω) |