Metal explosion-proof twin mic, Range 5m, Built in Preamp

NV-YNSUPR-1200 Metal Mic Explosion-Proof Twin Microphone with Built in PreAmp

• Riot microphone, made of Heavy aluminum panel, used at prison. 
• Built-in double hidden microphone, reduce noise
• Resistance to echo
• Double high sensitive microphones
• Built in Preamplifier       
• Using advanced Clear Speech I technology, voice become clearer.
• Metal explosion-proof
• Microphones have built in surge protector and Power supply polarity reversal protection process
• Use 3 core 0.5 mm 3 km RVVP shielded cable transmission distortion
• Integrated import front audio amplifier, microphone can drive directly Active speaker, DVR
• Standard: CE, FCC, ROHS, synchronized video recording system construction specifications