Featuresr onvifr hd 720pr full duplex audior pir alarmr one key wifi connectingr pnp plug playno need port forwardingr wi fi setting configuration moder mobile view ios androidr motion detectionr alert to mobile phonesr snapshot videor mobile unlockr ip video doorbellr smartphone app remote unlock doorr surveillance camera send alert automaticlyr see hear and talk to visitor on smartphone any where any timer unlock password is required before opening door double safety