AudioQuest DragonFly Red USB DAC, Preamp & Headphone Amp

USB Stick-Sized Digital-to-Analog Converter Plays all music files: MP3 to high-res Compatible with Apple and Windows PCs, as well as iOS and Android mobile devices (requires Apple Camera Adapter or Made for Android/OTG adaptor) Drives headphones directly Fixed output feeds preamp or AV receiver Asynchronous transfer ensures digital timing integrity High output (2.1 volts) drives almost all headphones, including power-hungry models 32-bit ESS 9016 DAC with minimum-phase filter Bit-perfect digital volume control *Computer not included*