This advanced DVR is loaded with features and looks just like a large functioning wall clock, so it will blend in anywhere in your home or business. It records video in high definition (a resolution of 1280x720) to the micro SD card (not included, up to 32GB). It is powered by AC power so you don't have to recharge it (an adapter with 6 feet of cord is included). However, the clock will require one AA battery to keep the time current. It has a motion detector so it can be set to record only when there is motion with a pre-motion trigger which will save the three seconds before the motion started and the three seconds after the motion has stopped.