High Resolution Sound Support: Portable headphone amplifier supports up to 32Bits 384KHZ for PCM and DSD256 for DSD high end decoding. Type C To 3.5mm/4.4mm Interface: Tiny headphone amplifier supports headphones with 3.5MM and 4.4MM interfaces for wider compatibility and power. Compatible: Headphone amplifier supports a wide range of Type C interface devices, supporting Type C interface for smartphones, portable players, tablets and computers. Volume Control: Mini headphone amplifier automatically decodes DSD PCM music at the press of a button. The buttons can control volume, single press to pause or play, double press for thetrack, and three consecutive presses for the previous track. Practical: Headphone tiny amps are made of ABS, mini and compact, easy to carry, can be used at home or office while listening to music, playing games or chatting.