3X(Extremely Sensitive
Great for Security Monitoring
Higher S
Range:15 Square metres
Sensitivity:200mA/ubar

Work current :5mA-60mA
Work Voltage:6-12V
Frequency:200-6000HZ
Speaker: waterproof,full frequency speaker.
impedance:4OHM
Voice coil: 16 core
Magnet: single magnetic
Power: 3W
Input voltage:DC12V
Colour:white
Material:plastic
Size:90 x 56.8mm

Contents:
1 x Speaker Microphone)