The Jebao Doser 3.4 is a newly innovated WIFI smart, and affordable dosing pump with 4 dosing heads. Each pump can be programmed to come on up to 24 times a day and dispense a precise amount of solution, which allows a user to keep their tank parameters stable, and removes the need for mixing supplements daily. The Doser 3.4 is perfect for any tank, as it allows for dosing in both large and small increments. The Doser 3.4 comes with a power supply and is plug and play after it is calibrated. Package includes Jebao Doser 2.4 Dosing pump x1, power adapter x 1, Manul x 1 Attention: WIFI is for 2.4G Network, please make for your router compatible for 2.4G. (Any Bridge / Switch / Amazon Echo or Mobile data tethering machine do not support)