Smartglasses; Wearable computers in the nature of smartglasses; Smart glasses; Virtual reality glasses; Wireless headphones; Wireless headsets for smartphones; Earphones; Wearable global positioning system (GPS); Wearable activity trackers; Wearable cameras; Wearable technological devices being virtual reality headsets; Wearable technological devices being smartwatches; Smart rings; Downloadable smartphone software for heart rate monitoring; Smart cameras; Smart ear buds; Global positioning s...