motion detection recording :turn on motion detection mode,hidden camera will start to record videos when detected motion happened within 5-7 meters around it,saving your sd card space and camera battery at the most degree. 2* hidden camera built in nanny camera features loop video recording,motion detection,picture taking. mounting on the ceiling,this spy camera can record videos with wide field. all functions are controlled by one tiny remote controller 3* loop video recorder :hidden camera support loop video recording. once sd card gets full,the newest file clip will overwrite the oldest file and continue recording. here sd card not included,supports 2h continuous recording;support 32gb sd card in max. 4* this security camera supports 12h recording after fully charged;charging time:5-6h;connect it to adapter(dc 5v 2a)for charging while it is working,no time limitation for recording.