wifi wireless video doorbell 720p hd chime motion detection battery powered real-time video two-way talk night vision pir remote control

alarm : yes item type : video doorbell connection type : wireless feature : pgraph display : color power : dry battery itercom : yes brand name : moes system structure : embedded rtos design, dual-core 32-bit dsp (junzheng t20), pure hard c lens : f2.5-1/4-m12 interface day and night conversion mode : support ir-cut noise reduction : support 2d/3d noise reduction audio processing : g.711a codec standard, support two-way voice intercom function, suppor signal interface : 1 presistor inter