3 microcurrent intensities offer a completely customized skin care routine; Exclusive Anti-Shock System™ automatically adjusts the precision microcurrent to best suit your skin offering maximum safety and comfort with each use; T-Sonic™ pulsations enhance serum absorption and gently massage the face to boost skin's radiance; Syncs with the FOREO For You app to access a guided targeted routine as well as adjust device settings; Recommended use with FOREO's SERUM SERUM SERUM for safe, optimal conductivity and results