No license information, no comment, no nothing for this one. You can always check the file to learn the design process, though.
Switch PSD is a free UI design resource made by Dribbble user tiramisu. As far as I can tell, its license is Unknown.
Helpful hint: Dribbble users are nice. If the license is unknown, it is usually because they forgot to mention it explicitly; not because they were being stingy. Ask nicely and they will probably allow you to use it.