«  Excelent »

I use it for 3 months, easy to use for novices, I said, with headphones, you can hear live what you recorded at the beginning, it's been weird when it's not used, you hear sound of a motorcycle that you do not see, and 10 seconds later, you see it, this little device is adjustable for sensitivity, it means that when you walk, you clearly hear your footsteps!
There is an option to avoid saturation of sound, ca manages itself!

Value / price: unbeatable!