AnGeer LED 3 Colors Temperature Controlled Rainfall Top Spray Shower Head Bathroom Shower Head Temperature Control: The LED shower head color changes based on the water temperature; Durable Materials: Made of ABS materials, environmentally friendly, safe, durable and healthy; International Standard: Suits for G1/2, Tools-free Installation. Connects in minutes to any standard overhead shower arm, no tools required; Four levels: Four color of LED lights changes, 1&#x2103; - 32&#x2103;( Blue ); 33&#x2103; - 41&#x2103;( Green ); 42&#x2103; - 45&#x2103;( Red ); More than 45&#x2103;( Flashing red ); No Battery Design: The inner design high-tech water power device, no need for the battery, it will light up when the water flows and turn off when the water stop.