Ten years ago, Dyson kicked off the hair gadget arms race with its $400 Supersonic hairdryer. Today, it’s back with a slightly smaller and cheaper travel-size version.
As the name suggests, the $299.99 Supersonic Travel is meant for people on the go — whether that’s a business trip or a jaunt to the gym before work. Dyson claims that it’s 32 percent smaller, 25 percent lighter, and capable of fitting in purses and carry-on luggage. It uses the same basic tech as the Supersonic, though…


