Easy to install video doorbell with chime featuring 1440p HD Head-To-Toe View. Also includes person and package alerts that send real-time notifications whenever a visitor or delivery arrives. Speak to visitors in real-time with the 2-Way Talk feature and see whats happening in 1440p HD Live View. Chime offers choice of 2 melodies. Works with - Amazon Alexa - iOS App - Android App Battery-Powered or Hard-Wired Bell Push 9m IR/Night Vision Range Camera Resolution: 1440p 2 Melodies Dependent on Local WiFi Range Adjustable Volume Real-Time Viewing & Video Record Hub Not Required Works with - Amazon Alexa - iOS App - Android App Battery-Powered or Hard-Wired Bell Push 9m IR/Night Vision Range Camera Resolution: 1440p 2 Melodies Dependent on Local WiFi Range Adjustable Volume Real-Time Viewing & Video Record Hub Not Required