Specification Model M9 Product Name Wireless Video DoorbellNight Vision Equipped with IR sensorCommunication Two way audio through built in speaker and microphoneConnectivity 2 4G WiFiRange Up to 50M PenetrationPower Battery poweredFeatures 1 Easy installation that doesn t require any wiring set up 2 It comes with an application which promptly notifies when someone rings the doorbell 3 The application supports remote dialogue function allowing homeowners to speak with visitors from anywhere 4 M9 doorbell features two way audio communication which makes it possible to talk and listen to your visitors 5 The infrared night vision feature helps in monitoring your entrance even in pitch dark Package Includes 1x Indoors Machine1x Outdoors Machine1x USB Cable1x Mount Accessory1x Sticker1x Manual1x Package Box