Monitor Amps -Audio Micro Pickup For CCTV Camera Security 501D Monitor DC 9V-14V Sound Highlights Generic Brand Audio Micro Pickup For CCTV Camera Security 501D Monitor DC 9V-14V Sound Description : High sensitivity, low distortion, small volume, wide operating voltage range, built-in reverse feed protection circuits, low power, transmit for remote distance, easy to connect Suitable recessed and open installation Widely Used in bank, financial, market, prison, court, examination hall, conference hall, industrial manufacturing, military area, highway toll station, etc. Total length: approx. 14.5cm / 5.7 inch Working voltage: 9~14V Current working: 5mA~60mA Sensitivity: 200mA/Ubar Frequency: 100~10000Hz Maximum output voltage: 2~5V-UPP Package includes: 1 x Mini sound recording