General description 100% Brand New and High Quality Passive Coaxial Video Ground Loop Isolator Balun BNC Male to Female for CCTV Camera. This device prevents video signal distortion caused by ground loops, eliminating tearing, crosstalk, and rolling. It also prevents interference from power cables laid by others, ensuring a clear video signal. Technical specifications Insertion Loss: 0.5 dB Frequency Response: 20 Hz - 10 MHz (0 - 3 dB) Coaxial Input/Output Resistance: 75 Ohm Ground Isolation: More than 90 dB (more than 50 Hz) Isolation Voltage: DC 600V (Min) Insulation Resistance: 100M Ohm Transient Voltage Suppressors: 12 Vrms Dimensions: 68 x 28 x 21 mm Color: Black Material: Plastic, Metal Compatibility and accessories Package Included: 20 x BNC Video Ground Loop Isolator 20 x English Installation Instructions Other information Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed