Amazon.com: FiiO K3 DSD256 | 384K/32Bit USB-C DAC and Headphone Amplifier for Home and Computer(3.5mm Single Ended/2.5mm Balanced/Coaxial and Optical Digital Outs) (K3 Titanium) : Electronics
The FiiO Q5 Portable Headphone Amplifier/DAC - Now With the New AM3B Amplifier Module-FIIO---BORN FOR MUSIC
The FiiO Q5 Portable Headphone Amplifier/DAC - Now With the New AM3B Amplifier Module-FIIO---BORN FOR MUSIC
FiiO K1 Portable Headphone Amplifier and USB DAC, Titanium - Walmart.com