... TFT color display3.300meters barrier free remote control distanceProduct Name: Wireless video Doorbell(1v2) 1,2.4GHz launch frequency, Approx 300meters ... angle, clear long-range images, Approx 280M barrier free.4,Infrared night vision function, with a good safety monitoring in low ... power + indoor monitor battery + manual 3.5 inch Touch 1V2 wireless video doorbell