With this portable hot brush lash curler and it's revolutionary new eyelash shaping device easily gives a longer lasting curl while smoothing mascara and separating lashes. Tired of damaging your lashes, this safe and long lasting lash curler stops pulling and pinching the lashes. No more pain or destruction of your eyelashes. The hand low battery warning LED light lets you know when the battery is running low and the auto temperature control lets you know when it's ready to use. Convenient, simple and super good to use. Steps for usage: Apply mascara Press the root of the eyelashes for 15 seconds Press the section up from the root Reapply mascara to firm up Feature: 10--40 seconds preheating, does not hurt the eyelashes, double-sided anti-scald comb, does not hurt the skin Enlarged eyes, clear roots, long and dense, naturally curly Using the principle of temperature difference, high temperature softening, low temperature lock curl. 48 hours long lasting curler Specification: Material: ABS. Working temperature: 60-80?. Charging method: USB. Input: 5V, 1A. Working voltage: 3.7V. Size(LxWxH): Approx. 18x22x140mm/0.71x0.87x5.51 inch. Package: 1 x Electric Eyelash Curler 1 x USB Cable 1 x Manual