Camera:w Power:battery Image Sensor:2.0 megapixel CMOS, Vbell Day night:Mechanical Dual IR-cut filter Lens Angle:140 degree Vbell Audio Input:Built-in Mic Vbell Audio Output:Built-in Speaker Vbell Smart Alarm:PIR detection Vbell IR Distance:5meter Vbell Local Storage:Micro SD card Power:built-in rechargeable battery Cloud Service:Dahua Easy4ip cloud