A mechanical or lockable device is operated based on the use of wireless transmission (electrical data connection or mechanical tapping) to a key housing. The key housing converts the transmission (a first transmission) into a code and checks if the code is correct. If so, a mechanical press of a button on a key fixedly held in place in the housing is made. The key is a further wireless transmitter which transmits, via a second transmission, a code to move a mechanical object, such as a latch in a car door lock or a garage door. In this manner, two wireless transmissions are made to two different receivers, causing two different mechanical movements, in sequence.