Free Express Shipping! FiiO K7 Desktop USB DAC and Headphone Amplifier (Red) For Computers, Phones, Music Players, Dual High-Resolution AK4493S DACs, XMOS XUF208 USB Decoding Chip, Supports 384 kHz / 32-Bit, DSD256, Unbalanced 1/4" & Balanced 4.4mm...