Ditch the old doorbell and get the Wifi Video Smart Doorbell. Once the Wifi doorbell is connected to your 2.4Ghz Wifi network, it will produce a live feed that allows you to see who is at the door. The doorbell has a built in speaker and microphone so you can communicate with your visitor. The doorbell will also start recording once the PIR motion sensor is triggered. If your visitor does press the door bell an alert will be sent your phone. Capable of taking HD videos and photographs with 720P resolution. Infrared technology allows the camera to work in dark environment. Includes 2x rechargeable lithium ion batteries. The wifi video doorbell is only compatible with a 2.4Ghz wireless network.