Control your Pan Tilt Zoom Security Cameras easily from your iPhone 3. Listen to live audio (on cameras with a microphone) and perform 2 way conversations when your DVR is connected to a powered speaker 4. Create favorite groups of your most important cameras for easy viewing 5. Take snapshots of pertinent video and save directly to your iPhone 6. There is also a built in manual in the "help" section of the software ADDITIONAL FEATURES ON PAID APPLICATION: In addition to the features on our CCTVSP Lite Application, the paid version has additional features including the ability to: 1. Search and Playback Recorded Video 2. Configure settings of individual channels (cameras) 3. Utilize Alarm Push Notification