Decibel Tester

Category	Price	Seller	Device
Utilities	Free	Jia ChuanSheng	iPhone, iPad, iPod

0-20dB is very quiet and almost impossible to feel
20-40dB Quiet, Soft Talk
40-60dB Normal, ordinary indoor talking
60-70dB noise, speak loudly
"70-90dB is noisy and damages nerve cells" = "70-90dB is noisy and damages nerve cells";
"90-120dB extremely noisy, injuried hearing" = "90-120dB extremely noisy, injuring hearing";

***App Features***
- No advertising, no in-app purchase information, safe and secure use
- High-precision measurement, real-time measurement
- Provide location information measurement
- Provide detailed measurement report
- Simple design, one-click measurement

***Description***
We have developed more accurate measurement methods than other applications on the market, but we still cannot completely replace professional equipment. The measurement data is for reference only.