In addition to all this, when a device is detected it alerts you in four different ways. Further, we also tested and found that the device works best up to 30-35 feet. In one sweep, you will get the best bug results which are more accurate and more precise than its competitors. SpyTec anti spy detector is actually a professional detector because of its precision RF detection.
This allows you to detect six types of devices at one single time. While testing it, what we liked the most in this best bug detector is the use of 6 independent channels each of which supports a different frequency range. What you need to just do is to keep a spare set of batteries in case you go out of charge. So, you need not to charge it before leaving your home.
We tested and found that they work for good 15-18 hours. The detector works with two AAA batteries.