2.What are the differents between K5 Pro and K5?

颜色color

黑 black

钛色 Titanium

USB解码

USB Decode

支持384kHz/32b解码

Support up to 384kHz/32b decoding

不支持（需要配FiiO播放器）

Not support (or must use FiiO's Music Player for decoding)

DSD

支持DSD256

Support up to DSD256

不支持

Not support

信号输入

Signal input

Line/USB/Coaxial/Optical输入

Support Line/USB/Coaxial/Optical in

Line in

Only support Line in

手机解码

Mobile phone decoding

支持

Support both Android and iOS device

不支持

Not support

指示灯

Indicator light

RGB三色可调

RGB three-color adjustable indicator

红蓝双色

Red and blue two-color indicator