Easily record audio, picture and video through buttons or a remote control. Also, it can be hid perfectly in the bathroom, living room, bedroom of  house or office of the company. It would help you monitor and protect the people or belongings you care and value. You would relieve a lot with a DVR invisible camera in the house/office. It can be widely applied in places such as house, office, warehouse, shop, supermarket, bank ,construction site and so on.