Review (1/5): Extremely poor design. Junk
Poor product design. There is no indicator light or other mechanism to know if the unit is on or how hot it is even though there are +\- buttons. The power button and plus/minus are right where you place your hand so hitting any or all of them occur just by picking it up. I selected the power button and waited...brushed my hair with it...and nothing. Pushed the button again and repeated...still nothing. Junk.