The "IDTechEx Show!" in Santa Clara, California, November 16-17 is the world's most comprehensive event for those seeking to use or make energy harvesting devices and systems and for those developing the functional materials or considering investing in this vibrant industry.

Wearable technology for humans is a big business. There will be almost 40 product sub-categories in the next 10 years, including fitness trackers, smartwatches, connected clothing, smart eyewear, medical devices, smart patches, headphones, and hearing devices.