Laser Microphone
This device turns any window or faceplate into a bug by reflecting an invisible laser beam off the glass and picking up vibrations caused by speech within the room. The user may roll Electronics Operation (Surveillance) to hear whatever is behind the window as if he were present on the other side of it. Extraneous noise such as loud music or running faucets is easily filtered out. Very heavy curtains, anti-laser coating, or triple-glazing may defeat this method; bug stompers and privacy field white-noise generators always do. Laser sensors can sense a laser mike.
Laser Microphone (TL9). Range 3,000 yards. $200, 2.5 lbs., C/10 hr. LC3.
Pocket Laser Mike (TL9). Range 300 yards. $40, 0.1 lb., A/1 hr. LC3.
Range is doubled at TL10, multiplied by five at TL11, and multiplied by 10 at TL12.