Headphones; Earphones; Audio speakers; Loudspeakers; Sound bars and digital audio streaming devices; Wireless indoor and outdoor speakers; [ Audio amplifiers and processor; Microphones; Virtual reality headsets; Wearable activity trackers; Multifunctional electronic devices for displaying, measuring, and uploading to the internet information including time, date, heart rate, global positioning, direction, distance, altitude, speed, steps taken, calories burned, navigational information, chang...

HeadphonesEarphones; Audio speakers; Loudspeakers; Sound bars and digital audio streaming devices; Wireless indoor and outdoor speakers; Audio amplifiers and processor; Microphones; Virtual reality headsets; Wearable activity trackers; Multifunctional electronic devices for displaying, measuring, and uploading to the internet information including time, date, heart rate, global positioning, direction, distance, altitude, speed, steps taken, calories burned, navigational information, changes i...