1080P HD Video Balun: Full-motion CCTV video at distance up to 350m-600m when used with any passive transceiver. Up to 300m for 960H/1080P AHD Cameras, for HDTVI Cameras in DVR support. lasts for over 10000 hours/417 days. There are 6 small holes and bulgy points set on opposite sides of video balun enable you to combine them together and made a neat line so they are more manageable if more than one video balun is used. Compatible with HD-CVI, HD-TVI, HD-AHD, CVBS, NTSC, PAL, and SECAM video formats. 60 Db talk and noise immunity. Push-terminal channel passive HD transceiver, male BNC allows connection directly to TVI/CVI/AHD or camera system,gold plated BNC better transmission quality long distance HD transmitter. No power required Support HD-CVI, HD-TVI, HD-AHD ,CVBS Up to 600m for 720P HDCVI Cameras Up to 600m for 720P CVBS Cameras Up to 300m for 960H/1080P AHD Cameras Up to 300m for 720P/1080p HDTVI Cameras NTSC, PAL, and SECAM video formats 60dB talk and noise immunity. Compact size and easy installation Built-in transient suppression protection Innovative combinable design Frequency response: DC to 80Mhz Attenuation: 0.5dB type Surge protection: 1000V Max Connectors: Male BNC and " -Fit" terminal blocks Impedance: BNC: 75 ohms Terminal: 100ohms Working Temperature: -10 Celsius to +70 Celsius Storage Temperature: -30 Celsius to + 70 Celsius Humidity: 0 to 95% Category Type: Cat5e/6 suggested Transient Immunity: per AN SI/IEE E 587 C62.41 Colour: Black Material: metal + ABS Size: about 18cm long Package contents: 4 Pair x HD Video Balun Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.