iFi Micro iDSD USB DAC and Headphone Amplifier Turn digital audio into cleaner, clearer, more naturally detailed music for headphones, powered speakers, and complete audio systems Dual-core Burr Brown chipset accommodates all music files, including the highest resolution DSD and DXD formats High output (&gt; 2 volts) drives almost all headphones and in-ear monitors, including low-efficiency, power-hungry models Portable with up to 12 hours of playback and a 1.5A SmartPower charger compatible with iPhone and Android devices Features high-performance minimum-phase, 32-bit decoding, analogue volume control, Direct/Pre-Amp, 3.5mm input, SPDIF coaxial Input/Output