You don't. You'll have to use a timer. I got it for my son for Christmas, and he likes the simplicity. He sets a timer on his phone. He gives it 5 stars for ease of use, portability, and sturdiness. And he now owns 3 of them!
9 months ago
How often do you shop at JCPenney? Occasionally
3out of 3found this answer helpful.
Was this helpful?helpful3unhelpful0http://answers.jcpenney.com/answers/submit/1573/product/169731/answer/2585200/undohelpfulness.djs?authsourcetype=__AUTHTYPE__&format=embeddedhtml&innerreturn=http%3A%2F%2Fanswers.jcpenney.com%2Fanswers%2F1573%2Fproduct%2F169731%2Fquestions.djs%3Fexpandanswer%3D2585200%26expandquestion%3D2593161%26format%3Dembeddedhtml%26scrolltotop%3Dtrue&return=__RETURN__&sessionparams=__BVSESSIONPARAMS__&submissionparams=__BVSUBMISSIONPARAMETERS__&submissionurl=__BVSUBMISSIONURL__&user=__USERID__