Instant Alert: We tried Dyson's $400 supersonic hair dryer — here's the verdict

MANAGE SUBSCRIPTIONS   |   UNSUBSCRIBE   |   VIEW ONLINE   We tried Dyson's $400 supersonic hair dryer — here's the verdict by Kevin Reilly on Dec 5, 2016, 9:06 AM Dyson Supersonic hair dryer retails for $399.99. As one of the most expensive personal hair dryers on the market, we were eager to test it out. Follow Tech Insider: On Facebook   Share the latest business news with your network:    Email sent to:   |   Manage your email preferences   |   Unsubscribe Terms of Service   |   Privacy Policy Business Insider. 150 Fifth Avenue, New York, NY 10011