Microphone High Sensitive Pickup Audio Mic For Cctv Security Camera

Features:
This security microphone for CCTV security camera is compatible with devices that accept AV input, like DVR, VCR, TV, etc.
Used to increase a microphone's low output voltage to a stronger usable level. 
High Sensitivity Audio Sound Pick Up. 
Sensitivity adjustable.
Low noise, high-fidelity. 
Wide monitoring range of about 10-50 square meter.
Specifications:
Color: Black
Material: Plastic
Voltage: DC 9-12V
Current: 15mA
Output Impedance: 600ohm
Monitoring Range: 10-50 Square Meter
Connector: Red (DC12V Input), Black (DC12V Output), White (RCA)
Cable Length: About 42cm
Package Weight: About 29g
Package List:1 * Audio Pickup Device 

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.