Specifications: 1) Dimensions: 900 x 900 x 2,100mm2) Materials: tough glass, aluminum alloy and ABS board3) Functions: a) Top showerb) Handle showerc) Top lightd) Back massagee) Ventilatorf) Loudspeakerg) Radioh) Phone receiveri) On/off button 4) We install plastic belt (water proof) around the shower room to prevent from the water leakage, no silicon used for seal5) Faucets, bath accessories are copper material