Shower filter with light

Shower filter with light. The filter contains rocks that reduce limescale causing hair loss, and also a LED that changes color according to temperature and does not require any batteries as it relies on hydroelectric power. Specifications: Limescale reducing beads that cause hair loss. Green light with cold water. Blue light with warm (lukewarm) water. Red light with hot water. Does not need charging or batteries as it depends on hydroelectric energy. Product validity: according to usage, 1 - 2 years.