Technical Info: Approximate size: 5.5cm(L) x 4.5cm (H) x 1.5cm (W) Battery included (1 x AAA) Driven by a 10,000rpm micro motor Retractable blades Composition = plastic / electrical The Micro Fan is the world's smallest and lightest travel pocket fan, but don't let it's size fool you, the fan is deceptively powerful, driven by a 10,000rpm micro motor, the fan will deliver a refreshing breeze when you most need it! Product Video: