It is a portable and highly efficient DAC for lossless audio, but that's not the reason why I want it.

Fiio enhances its high-fidelity audio offerings with the launch of a powerful new network streamer, a DAC/amp for headphones, and a new portable device.

Here’s the translation: "What has happened from the 2000s to the present?"

Lossless audio over Bluetooth at an affordable price.