I bought this dB sound level meter to check if my wife is really yelling at me loudly. 120dB! This kid is perfect. That's right (my friends said she screams so loud you can hear her inside!). Now I have a way to prove it's damaging my hearing. And her snoring? Dagger! I measured it at 100 dB! Now she believes me and it saved our marriage. :) I recommend it to anyone!