Hign-concerned Chemical: None Features: 4-Zone 2.4GHz Rainbow Remote Adjustable saturation CCT/Brightness Model Number: S2W-4-Zone Connection Mode: 2.4GHz Wattage: 4-Zone Max. Load Power: 4-Zone Remote Distance: 30m(Barrier-free space) Applicable Lights: or series RGB/RGBW/RGBCCT controllers and lamps. Controled Method: 2.4GHz Item Type: RGB controler Working Temperature: -10~40°C Transmitting Power: 6dBm Standby Power Consumption: 20μA Working Voltage: 3V (Without 2 * AAA batteries) Color: White Material: plastic Package Contents: 1 x 2.4GHz Rainbow Remote (Without 2 * AAA batteries) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.