User Agent

Mozilla/5.0 (Linux; U; Android 16; zh-cn; 2311DRK48C Build/BP2A.250605.031.A3) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.126 MQQBrowser/20.2 Mobile Safari/537.36

This user agent belongs to Android WebView. Google Inc developed this Browser. This Browser run on Android and it renders web contents with Blink on general Mobile Phone.

Browser - Android WebView

Android WebView

Version66.0 @ 32 bit
DeveloperGoogle Inc
ParentAndroid WebView 66.0
Platform android (32 bit) by Google Inc
Device TypeMobile Phone

Act as 

Mobile Yes
Tablet No
Crawler No
Fake No
Anonymized No

Capabilities

Rendering EngineBlink by Google Inc (a WebKit Fork by Google)
Pointingtouchscreen
Javascript Yes
CSS Yes Version: 3
Cookies Yes
Tables Yes
Frames Yes
IFrames Yes
Background Sounds No
Java Applets No
VB Script No
Activex No