---------------------------------It takes 2 to 4 days to ship.---------------------------------Made in CHINA*Manufactured by Japan's MYTREX at a factory in China. Approximately 90 x 234 x 110mm, about 282 Remove 98.5 % of residual chlorine.* Total filtration ability: about 4080L. As it is used, the removal ability gradually decreases.*One cartridge is included.* Estimated cartridge change: about 3 months. It has more than 54 % water saving effects. Microcurrent is an electric current so weak that it is not felt as a stimulus, and is used in esthetic, facial, and medical treatment devices. Micro-current stimulates the skin from the inside, making it feel firmer, more elastic, and anti-aging. The shower head is equipped with a "hydroelectric generator" that generates micro-current from the shower head itself, a unique technology that took several years to develop. Despite the fact that it emits electricity, the water at home can be used as a "skin-enhancing" shower that provides the same effect as a facial care device just by taking a bath in it, without the need for recharging or electricity bills. By turning the dial, you can switch between microcurrent mode, mist mode, and straight mode. Pore: about 100-300 micrometersHair: Approximately 80 micrometersMicro bubble: 1-100 micrometersUltra fine bubble: 1 micrometerNano bubble: 1 micrometer (1000 nanometer) or less This product emits a large amount of nanobubbles with a diameter of 0.000046mm (46 nanometers), which is much smaller than the standard value.