D-Link DCS-933L Day & Night Wi-Fi Camera with Wi-Fi Extender (White) 16 feet of night vision allows you to see clearly even in complete darkness The built-in Wi-Fi extender lets you place your camera where you need it most while still providing a reliable Wi-Fi connection for uninterrupted live viewing Sound detection and motion sensing technology sends you automatic push alert notifications whenever a loud noise or movement is detected View, control and pinch to zoom up to 4x using the free mydlink Lite app available for iOS, Android devices and Windows Phones