Wrist Watching: Amazon Patents System To Track, Guide Employees' Hands The online retailer has acquired patents for wristbands using radio frequencies or ultrasonic pulses to identify exactly where a warehouse worker's hands are, and indicate if they need to move. The online retailer has acquired patents for wristbands using radio frequencies or ultrasonic pulses to identify exactly where a warehouse worker's hands are, and indicate if they need to move. Business
The online retailer has acquired patents for wristbands using radio frequencies or ultrasonic pulses to identify exactly where a warehouse worker's hands are, and indicate if they need to move.
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