This amplified microphone is used to pick-up sound in a room. Can be used with our wired cameras and wired surveillance systems.
High Gain: -40db
Can draw power directly from camera or plug into wall outlet (9-12V)
NOTE: As with all our "sound enhancing" products, this unit is not designed or to be used to surreptitiously intercept oral communication. Use for this purpose seriously violates federal laws.