[PLEASE WATCH THE VIDEO] - The effect is beyond imagination. ^^ Designed by American designers, the appearance is exquisite, using Japanese nano-materials, and there is no odor. ^^ The product is effective for a long time. It can work continuously for 3 years and even be reused. ^^ It can be used together with the mobile phone case and can be connected to the outside or inside of the mobile phone case, which is very convenient. ^^ It is suitable for all smart phones or other electronic products without affecting any performance.