1.IR night vision 2.clear voice for intercom 3.stable quality Product name: Touch screen 3.5" wireless Video Door Phone made in China simply features:1,Wireless Video door phone,3.5 inch display screen,touch button2,Video intercom,unlocking,monitor functions3,Intercome between inner monitors4,Infared night vision5, Waterproof outer camera6, support 8G TF card7,autumatic recording function, photo ...