Specifications: Frequency response: DC-8MHZ Attenuation: 0.5bd type CMRR(common mode rejection ratio): 60bd Impedance: BNC: 75Ω; RJ45: 100Ω Transmission distance: Up to 450m for 720P CVI cameras; Up to 250m for 1080P CVI cameras; Up to 250m for 1080P / 720P TVI cameras; Up to 320m for 720P AHD cameras Working temperature: -10℃ to + 70℃ Storage temperature: -30℃ to + 70℃ Humidity: 0 to 95% Dimension: 55x30x25 with 12cm cable Material: ABS plastic Package weight: 87g Quantity: 1 pair (2 pcs) Package Included: 2Pcs x BNC Video Power Balun Noise Immunity: hd twisted pair transmitters unparalleled interference rejection and low emissions allows video signals to co-exist in the same wire bundle as telephone, datacom, or low-voltage power circuits. Compatible with: The video balun is compatible with HD-CVI, HD-TVI, HD-AHD signals,NTC, PAL, and SECAM video formats,compact size and easy installation. Video Transmission: This Video Transceiver with Power is a passive (non-amplified) device that allows the transmission of real-time or color video over Unshielded Twisted Pair (UTP) telephone wire,power and Video are routed via UTP and RJ45 connections. Extensive Applications: Support all video devices, such as camera, monitor, DVR card and recorder etc.Compatible with all digital CVI, TVI and AHD Cameras. Power & Video Balun: The hd twisted pair transmitters is provided with better transmission quality and long distance HD transmiter,save cable cost 30%-50%.