This miniature surveillance microphone is perfect for listening to room sounds remotely and capturing conversations for later playback. When connected to a compatible DVR you can effortlessly set up a tapeless digital recorder or even covertly listen from anywhere in the world! (Requires RCA end connector.)

• Model Number: KZ-502A
• Sensitivity: 200 mA / ubar
• Working Current: 5 mA - 60 mA
• Working Voltage: 4 - 14 V
• Frequency : 200 - 6000Hz
•  S/N ratio : more than 58 db
• Dimensions: 1.6" x 1.25" x .75"
• Connector: DC 12V 3 pin wire (red power, black ground / bias, green data)