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 requiredSupport HD-CVI, HD-TVI, HD-AHD ,CVBSUp 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 CamerasNTSC, PAL, and SECAM video formats 60dB talk and noise immunity. Compact size and easy installation Built-in transient suppression protectionInnovative combinable designFrequency response: DC to 80Mhz Attenuation: 05dB type Surge protection: 1000V MaxConnectors: Male BNC and " Press-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 suggestedTransient Immunity: per AN SI/IEE E 587 C6241Colour: Black Material: metal + ABSSize: about 18cm longPackage Contents: 4 x1 Pair HD Video Balun TransmitterOnly the above package content, other products are not included.Note: Light 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.