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, cell phones, MP3 players and personal digital assistants; Cases adapted for mobile phones; Ear buds; Electronic plant moisture sensor; Food safety monitoring devices, namely, thermometers and alarms; Infrared detection apparatus; Mobile phone cases featuring rechargeable batteries; P...