we have more than 10 year expierence on beauty and skincare product, you can contact me if you need any other product.welcome to youmvp store this ems bio roller is automatic, which is very simple and convenient to use. with the electric mode, it can treat the whole face in a more even way to lift and tighten the skin. blue light: anti-inflammatory blemish, enhance beauty effect, shrink pores, soothe and calm skin. red light: concentrated anti-aging, reduces wrinkles, accelerates microcirculation, rejuvenate skin and lighten lines. 1. 5 adjustable levels of ems microcurrent. 2. 540pcs micro needles for skin cell repair. 3. 2 led lights+vibration care. 4. electric model (usb type-c charging)..syi