... see IR flash) 2,Detecting wave diatance:920m Wireless Pinhole Camera Scanners with Auto-detection Function Functions as follows: 1 ... Check hotels, toilets, entertainment venues, changing rooms, anti-wireless pinhole camera 12) Business negotiations, school examiner places, factories, military facilities ... Size: 93mm*48mm*17mm 11) Weight: 58g Wireless Pinhole Camera Scanners with Auto-detection Function