Abstract: A movement responding device includes a housing, a circuit board disposed in the housing, a control device mounted on the circuit board, a light device attached to the circuit board and electrically connected to the control device for generating a light, and a movement detector attached to the circuit board and electrically connected to the control device for detecting a movement of an object or a user and for supplying a detected information to the control device and for actuating the light device to generate the light when sensed or detected a movement of the object or the user or in automatic response to the detection of ambient movement or sound.

Abstract: A remote control ball assembly includes a housing, an actuating device having a circuit board disposed in the housing and having a processing device and a signal receiving device attached to the circuit board, two motors each include a wheel attached to a spindle and contacted with the housing, and a radio transmitter includes another processing device and an angle detector and a signal emitting device attached to another circuit board for detecting a status of the radio transmitter and for emitting the status signal to the signal receiving device, which then actuates the motors and the wheels to operate or to move the housing on land and on water without being operated by the fingers of the user.