led shower head water save hot sale 1.No battery needed; 2.No pollution, environmental protection; 3.Six functions availab led shower head water save hot sale1.No battery needed; 2.No pollution, environmental protection; 3.Six functions available; 4.CE & ROHS 5.Color compatibl1,As the built-in device generating electricity without the battery and any other power connets to water, LED will emit ...