... to sell items bearing such trademarks.Introduction:1. Adopting manual control switch design2. Metal housing, good shielding quality, strong interference resistance ... hotel, singing hall, shopping mall, school, factorySpecifications: YPbPrLuminance input level and impedance(Y)VS 1.0Vp-p±20% /75Ω Chrominance ... ,Cr/Pr)Vs0.535Vp-p±20% /75ΩLuminance output level and impedance(Y)VS1.0Vp-p±20% /75Ω Chrominance ...