: A "sone" is a unit used to measure subjective loudness. 166 sones would describe a very loud sound, roughly equivalent to the noise level of a loud motorcycle or power saw at close range.
If you let me know the context, I’d be happy to write a detailed, helpful review for you. sone166
: The code "SONE-166" follows the standard naming convention used by major production companies in the Japanese market. These codes are typically used to identify specific releases or titles within a studio's catalog. : A "sone" is a unit used to measure subjective loudness
Hold the Power button for 10 s to perform a hard reset (settings revert to factory defaults). sone166