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Alloy CCTV Microphone Sensitivity Dolby Surround Sound Audio Monitoring For Surveillance Security Kits
1. Alloy CCTV Microphone Sensitivity Dolby Surround Sound Audio Monitoring For Surveillance Security Kits.2. Special imported microphones.3. Directional logic dolby surround sound system, imported high-speed voice processing chip, the Listening range 10-100 square meters.4. Comply with CE, FCC, ROHS.USD $48.99
