This radio frequency bug detector truly separates itself from the rest of them and I think you will agree.

 RF detectors are simply a radio frequency receiving device. It is designed to detect wireless signals that are being transmitted within a certain frequency range.
For example a wireless hidden camera is designed to transmit video to a video receiver.

 Some wireless transmitters are designed to transmitt as far as 3 miles away while others can only be received one room away.

 So the stronger the signal being transmitted the easier it is for the bug detector to detect it. Some micro spy cams are designed to output a very low signal making them very hard to detect.

 
You may need to be very close to the camera or bug to detect it. They are designed this way not to be easily detected. The problem is if the detector is too sensitive it gives a false alarm. If it is not sensitive enough it does not detect the signal well enough.

 
This is what separates this bug detector from some of the others you see. It has a built in sensitivity adjustment allowing you to detect those not so easy to detect wireless bug transmitters.
 
Yes some spy cameras are very difficult to detect.

You can sweep the suspect area then gradually increase the sensitivity until you eventually hone in on the target.
 
It has a silent vibrate mode as well so you can use it without it sounding an audible alarm. It also has an earphone jack so if you choose you can use the included earphones while making your sweep.

Specifications

• Frequency:1 MHz-6 GHz
• Lower Frequency:0 -120 MHz
• Higher Frequency:149 MHz-400 MHz
• GSM:900 MHz-1900 MHz
• Detectable Image Frequency:200 MHz-2400 MHz
• MicroWave Frequency:2400 MHz- 6 GHz
• Working Voltage:3V (AAA x 2)
• Working Current:Caution 8mA Vibration 70mA
• Sensitivity:Max 10 meters Depends on output of Transmitter Detected
• Color:Bright Silver
• Dimension:56 x 90 x 17 mm
• Weight:50g

Accessories

• Radio Frequency Detector
• Earphone