HiBy FC1 USB DAC/Headphone Amplifier Used only a few times after purchase; includes original box, etc. Regarding its reputation, please refer to user reviews on Amazon, etc. It's a well-regarded headphone amplifier and DAC for its price. It's an excellent upgrade from the typical CX31993-based dongle DACs in the 2,000-3,000 yen range. (Going up from this would be the 10,000 yen class, such as the iBasso Macaron.) Shipping via Yu-Packet Post Mini. Thank you.