Introductions: This product uses the active laser scanning and passive radio frequency sweep combination method can accurately identify eavesdropping , telephone tapping and digital eavesdropping ,tracking ,vehicle eavesdropping, wireless pinhole cameras , wired cameras ,electrical sources can effectively prevent eavesdropping ,videotaping ,fraud , protection of personal privacy and confidential information. Technical data: 1. Laser detection camera from 10cm-10m(the naked eye can identify red flashing) 2. Radio detection of camera range 5cm-10cm(according to the decision transmit power from the camera) 3. Power at 50mw-200mw detection range 30-50cm 4. Power at 300mw -600mw detection range 100-200cm 5. Power at 800mw -1200mw detection range 300-1000cm 6. Power built-in lithium battery 280 mah 7. Operating current 8ma 8. Probe laser wavelength of 920nm 9. Receive frequency range of 1mhz-6500mhz 10. Special filter lens 11. Material abs Package Includes: 1 x detector 1 x charger 1 x earphone PS: We appreciate you leave "5 STAR" of Detailed Seller Rating and "POSITIVE Feedback (5"/4")" for us upon receiving your item. If you encounter any issues of your order, please email us and offer the details, Gadget Zone will do our best to resolve the issue immediately. Note: Trademark DBPOWER products are marketed exclusively by "Gadget Zone"