Category | Price | Seller | Device |
---|---|---|---|
Utilities | $0.99 | Hongwen Yang | iPhone, iPad, iPod |
+ Calibrated with a professional high-precision sound level meter.
+ Tracking all sound levels over 80 db and show you the total harmful dB duration and details before it hurts your hearing ( the reference duration is 8 hours and above) .
+ Show users real-time dB in graphics as well as store the records with renaming feature.
+ Support iTunes File sharing feature, easily transfer records from your devices to a computer.
+ It can work in the background.