Modified radio that is running an external high power but quiet 12V fan that is assisting with circulation of air into the case to allow the radio to run cooler. This was also modified for testing with the resistor modification shown on ForestRadio Germany. These modifications are ILLEGAL and should not be used on your radio. The fan unit however works great and uses the screw holes for venting of HOT air. Some build pictures: imgur.com/a/MyYU5wh
More modifications here: darkliferadio.proboards.com/thread/896/anytone-smart-albrecht-little-radio
And the soft power mod: reverendbow.wordpress.com/tag/anytone-smart-cb/