Omall (TM) 1pair Passive Video Balun Transmitter ,HD-CVI/TVI/AHD BNC Transceiver With Surge Protection Casing Material : ABS Plastic;Product Name :HD-CVI/TVI/AHD Video Balun; Frequency response: DC to 60Mhz,Attenuation: 0.5dB type,CMRR: 60dB; Brand product with the best quality and more efficient signal transmission,do not compare with those junk materials.NTSC,PAL,and SECAM video formats,No power required; Frequency response: DC to 60Mhz,Attenuation: 0.5dB type,CMRR: 60dB; Working Temperature: -10C to +70C,Storage Temperature: -30C to + 70C,Dimension:39mm*17mm*19mm(excluding connectors).