9 Devices for hands-free use of mobile phones; Electronic devices for assisting care giving for seniors or people needing assistance comprised of sensors for determining status of person and apparatus for sending electronic alerts to care givers; Electronic personal emergency response system consisting of a device worn on the body with a button that users push to notify others in the event of an emergency, and a remote unit that dials out on the telephone for help; Electronic text-messaging device for use in conjunction with personal digital assistants; Mobile operating systems; Wearable activity trackers; Wearable computers in the nature of smartglasses; Wearable computers in the nature of smartwatches; Armbands specially adapted for personal electronic devices, namely, wearable activity trackers and vital sign monitors; Atmospheric oxygen monitors; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, wearable activity trackers and vital sign monitors; Clear protective covers specially adapted for personal electronic devices, namely, wearable activity trackers and vital sign monitors; Countdown timer(s) and alarms to remind a person to take or give a medication(s) and/or to remind a person to do a daily routine(s) incorporated into a wristband; Downloadable mobile applications for gathering human biometric data from wearable activity trackers and vital sign monitors, organizing, transmitting, manipulating, reviewing returning data to the user for the health and wellness of the user; Downloadable software for connecting, operating, and managing networked wearable activity trackers and vital sign monitors in the internet of things (IoT); Electric, electronic, or electrochemical oxygen monitors and sensors for environmental use; Electronically encoded identity wristbands; Fitted plastic films known as skins for covering and providing a scratch proof barrier or protection for electronic devices, namely, MP3 players, mobile telephones, smart telephones, digital cameras, global positioning systems and personal digital assistants; Portable and handheld digital electronic devices for recording, organizing, transmitting, manipulating, and reviewing text, data, image, and audio files; Rheometers for measuring the viscosity and viscoelasticity of fluids; Smart watches; Smartwatch straps; Specialty holsters adapted for carrying personal electronic devices, namely, wearable activity trackers and vital sign monitors; Wearable video display monitors