9 Apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; apparatus for transmitting music, images and sounds for the purpose of calming and putting babies to sleep; movement and sound sensors; sound system consisting of an audio control unit, motion sensor, speakers and a music playback device, for transmitting music and sound; portable digital music recorders/players; baby monitors; and electronic projector and digital projectors for children; smartwatches; DECT monitors; artificial intelligence and machine learning software; audiovisual apparatus and instruments, weighing apparatus and instruments, measurement apparatus and instruments, signalling apparatus and instruments, detecting apparatus and instruments and teaching apparatus and equipment