U.TRADIO usb digital audio surveillance microphone

U.TRADIO usb digital audio surveillance microphone,30sq.m monitoring range,directly connect to PC with USB interface

U.TRADIO USB interface digital audio surveillance microphone exclusively for CCTV monitoring, 30sq.m monitoring range, with USB interface can connect directly to PC, with loudspeaker inside, can playback. headphone, soundcard of PC and anywhere CCTV installed, the maximum wire transmit distance can reach 3 Km(shield cable is required), it only need 12V DC power supply. Most of Tradio surveillance equipment microphones are widely used in banks, prisons, interrogation rooms, museum, auction hall, airport hall, ICU of hospital, classroom, warehouse, hotel, big stadium etc. During 2008, our products serve Beijing Olympic Games. we are respected by users around the world for an excellent sound experience with low echo & noise.

Introduction:

1.Low noise, Low echo, clear speech, medium price.2.widely voice-picking region.3.Dynamic de-noise disposal, built in DSP processor.4.Special closed circle circuit design, eliminating electronic noise.5.built-in loudspeaker, convenient for playback6.Volumn adjusting automatically (AGC), monitoring range reach 50 sq.m.7.Echo-concelling appearance design, eliminating echo in big hall.8.USB interface, connect directly to PC9.Restraining high intensity voice automatically, protecting rear devices.10.Long-distance transmission, the maximum transmiting distance can reach 3km. shield    Cable is required: 3 x 0.5 RVVP mm2cable, 4 core phone line, network twist line, etc.11.Built-in over-loading protection and lightning proof circuit.12.Excellent voice experience, widely working temperature: -25~75°C13.Widely used in: Police, Jail, Classroom, Army's department.14.According with CE standard.

Parameter:

Monitoring Range  10 ~ 30sq.mtransmiting distance(shield cable)  3kmFrequency Response  20Hz ~ 20kHzSensitivity     -45dBSNR         65dB(1m/40dB)   30dB(10m/40dB)1KHz at 1 PaPolar Pattern     Omni-directional   Dynamic Range     104dB(1KHz at Max dB SPL)Maximum Level Input    120dB SPL (1KHz,THD 1%)Impedance     600ohm (imbalance)Signal Output Extent     2.5Vpp/-25dbMicrophone     Electret condenserSpecial Circuit     DSP de-noise, AGC circuit

Protect Circuit     Over-loading protection, Lightning proofAudio Preamp     Build-in

USB interface, built-in loudspeakerCable             Power+, Audio and GND     3 x 0.5mm2 RVVP cableVoltage             DC 5V (USB power supply)        Current             200 mATemperature     -25°C ~ 70°CColor                blackShell's Material     ABSSize                 105mm×50mm×50mmWeight             180gStandard          CE

U.TRADIO usb digital audio surveillance microphone