Steemit friends wherever you are, this morning I want to share with you information about an electronic item we use in school and the name of this tool is a digital sound that works for the sound of a bell that makes a loud sound and is accompanied by a voice call to information we want such as "children please enter class" when showing hours of entry into the room and when the time out of the class then will make a sound "children can leave the class". so much information for today.
