... display3.300meters barrier free remote control distanceProduct Name: Wireless video Doorbell(1v2) 1,2.4GHz launch frequency, ... .5” digital screen, good viewing angle, clear long-range images, Approx 280M barrier free.4,Infrared night ... , Unlike mechanical buttons, cause damage for a long time or moisture, with effect of completely waterproof ... battery + manual 3.5 inch Touch 1V2 wireless video doorbell