§ soundtrack voice optimize the monitor head § Broadband professional voice optimized circuit § Built-in voice optimized circuit § metal riot sunscreen waterproof material § Metal fully waterproof HD pickup § 2mm pinhole and waterproof diaphragm § super waterproof-type microphone
20 to 150 m2 Impedance 600 ohms Frequency of 100 ~ 16Khz Power 9 ~ 12VDC Size Φ65 * 75mm For Kang, Dahua DVR device
Product Description 
