infoThink Marvel Series Motion Sensor USB Light built in a motion sensor. The light will lights up automatically when someone passes or moves with the scope of 120 degree with 3 meters large sensing range. Super Power LED warm yellow light, soft and not dazzling. It can hook, 3M without adhesive or placed on the desk/tablet. Powered by USB or 3 x AAA battery (NOT included). Convenience to use. Prefer for closet, toy collection room, storage room, garage, entrance, personal use, baby home security, elders care, camping, flashlights and so on.