Photo 1 of QOA Celest CD-20 Headphone Amplifier Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 32Bit 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops/Home Audio

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Photo 1 of QOA Celest CD-20 Headphone Amplifier Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 32Bit 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops/Home AudioPhoto 2 of QOA Celest CD-20 Headphone Amplifier Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 32Bit 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops/Home Audio