Features: 1. Obd2 chip turning box is a plug & drive ready device to function the reducing fuel consumption for the economy and lower emission for the world. 2. Obd2 economy fuel economy tuning box is easy to install. Just plug it into the obd2 3. Plug ecoobd2 turning box into obd2 connector of your car. And turn the ignition on for 30 seconds. And turn the engine on. 4. It is easy to install. Just plug it into the obd2 connector of cars. 5. Nitroobd2 can increasing the performance of engine. Specification: Condition: brand new Material: The fabric Weight: 10g Product size: (1cm=0.39inch approx) 5*2.5*3.5cm/1.96*0.98*1.37inch Optional color:Red,blue,yellow,green For Ecoobd2 diesel: Blue low fuel consumption and low emissions For Ecoobd2 gasoline: Green low fuel consumption and low emissions For Power progobd2 diesel: Red more power / torque For Power progobd2 petrol: Yellow more power / torque Package list: 1*chip tuning box Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、1.Obd2 chip turning box is a plug & drive ready device to function the reducing fuel consumption for the economy and lower emission for the world. 2、2.Obd2 economy fuel economy tuning box is easy to install. Just plug it into the obd2 3、3.Plug ecoobd2 turning box into obd2 connector of your car. And turn the ignition on for 30 seconds. And turn the engine on. 4、4.It is easy to install. Just plug it into the obd2 connector of cars. 5、5.Nitroobd2 can increasing the performance of engine.