KJB Security DVR225 POWER CASE DVR FOR IPHONE 4 & 4S Automatic Camera Orientation - camera is always in correct position regardless of phone face up or down True High Definition Video Resolution  1080P or 720P @ 30FPS Night Mode: Get built in High Dynamic Range (HDR) technology that records clear images in low light Vibration Alerts Indicating Power On, Recording, Snapshot Modes have been Enabled Totally self recording, does not need a functioning iPhone to work