Printed circuit boards; distance measuring apparatus; sound transmitting apparatus; radios; electronic tags for goods; wearable activity trackers; transmitters of electronic signals; computer peripheral devices; wireless communication device featuring voice, data and image transmission including voice, text and picture messaging, a video and still image camera, also functional to purchase music, games, video and software applications over the air for downloading to the device; downloadable computer software for computer system and application development, deployment and management; downloadable computer networking software; downloadable computer software for wireless content delivery.