1. Material: ABS plastic 2. Working principle: Using LED infrared physical laser scanning technology, the detector emits infrared rays through the dual effects of refraction of the camera glass mirror and filtering of complex light by the color filter to scan out hidden cameras 3. Automatic infrared sensing buzzer alarm, when the photosensitive device senses that an object emits infrared rays, it will immediately sound a buzzer alarm 4. High-precision sensing within 5 meters, large-scale scanning, and an alarm will be sounded when infrared rays are sensed from the outside world 5. Equipped with Type-c/8 Pin plug, mobile phone charging gets rid of the trouble of frequent battery replacement, plug in the phone and use the anti-sneak mode immediately, which can be used continuously 6. The compact design of the fuselage is convenient to carry 7. Product size: 75.5x38x15mm