This is a hand-held High frequency Wireless detector. The Mini Camera Detector is so small you can take it anywhere. When a wireless camera is detected, an LED light flickers and an audible alarm sounds. Advanced circuitry reduces false alarms from background interference. A sensitive tuner allows you to automatically scan variable distances and channels. The unit detects frequencies from 50MHz to 3GHz

Other specifications:

Battery: 2 x CR2032

Frequency Range: 50 MHz - 3 GHz
Weight: 1 oz.

Dimensions: 3 1/4" x 1 1/4" x 3/4"
Features:

Auto sensitivity tuner

Detects frequencies 50 to 3 GHz

Multi-channel scanning

Size is similar to a lighter

Background noise elimination

Audio and LED alarm