1.Sound monitoring 2.10~200m2 adjustable impedance of 1000ohms 3.Frequency20~20khz 4.9~12v DC Power supply Sound monitoringPerformance is as follows:§Builtin AGC circuit audio gain §Metal mesh into the audio port...

Video Monitoring Frequency 20~20Khz 10~200M2 Adjustable impedance of 1000 ohms Video MonitoringPerformance is as follows:§Squelch monitor the first highfidelitysound§AGC circuit builtin gain...

Sound monitoring 50~150m2 adjustable impedance of 1000ohms Frequency 100~16kh 6~12V DC Power supply Sound monitoringPerformance is as follows:§ Optimization of acoustic monitoring head voice...

CCTV Sound Monitoring Frequency 100 to 16 khz 6 to 12 vdc power supply 86 standard switch enclosure CCTV Sound MonitoringPerformance is as follows:§Acoustic noise Hi-Fi §AGC circuit built-in gain...

cctv camera surveillance Frequency 20~20Khz 10~200M2 Adjustable impedance of 1000 ohms CCTV Camera SurveillancePerformance is as follows:§ Builtin AGC circuit audio gain§ 2mm pinhole design...

Sound monitoring Frequency 20~20Khz 10~200M2 Adjustable impedance of 600 ohms 9~12V DC power supply Sound monitoringPerformance is as follows:§Acoustic noise HiFi§DSP builtin noise reduction circuitDynamic closedcircuit noise...

Voice monitor 10~200m2 adjustable impedance of 1000ohms Frequency20~20khz 9~12v DC Power supply Voice monitorPerformance is as follows:§Optimization of acoustic monitoring head voice...

Audio Video Surveillance 10~200m2 adjustable impedance of 1000ohms Frequency20~20khz 9~12v DC Power supply Audio Video SurveillancePerformance is as follows:§ Builtin AGC circuit audeo gain§...

Security Monitoring Frequency 100 to 16 khz 6 to 12 vdc power supply 86 standard switch enclosure Security MonitoringPerformance is as follows:§Optimization of acoustic monitoring head voice...

Audio Monitoring Head 50~120m2 impedance of 600 ohms Frequency 50~13khz 6~14V DC Power supply Size:7*39mm Audio Monitoring HeadPerformance is as...