The new LG GC-X247CQAV Knock Twice, See Inside, 668 Ltr InstaView Door-in-Door Refrigerators comes with Inverter Linear Compressor has revolutionized the core of the refrigerator, providing up to 51% in energy savings, top-rate durability and optimal temperature control to keep foods fresher longer. "Energy Consumption Rate" is always important for consumers who purchase refrigerator. LG's own Inverter Linear Compressor saves more energy by adapting efficiency-engineering mechanism. 51% Energy Saving In Refrigerator with Inverter Linear Compressor(ILC). Based on third party test under standard test conditions (ISO 15502) conducted exclusively for energy consumption, Models tested GBB530NSQWB (Reciprocating Compressor), GBB530NCXE (Inverter Linear Compressor). Actual Results may vary from model to model and also depends upon the kind of usage under general conditions. With LG ThinQ, you can control and diagnose your refrigerator by your smart phone even when you're not at home. Easily set the refrigerator temperature, control Express Freeze, and diagnose your refrigerator with simple touch on your smart phone. Smart diagnosis is a fast and easy way to troubleshoot issues. Simply call the LG Customer Service Helpline and place the phone on the appliance. The appliance then communicates with a computer that produces a diagnosis within seconds and provides an immediate solution. This intelligent air filter can not only remove bacteria up to 99.999%, but also minimize bad odor in the refrigerator. In addition, you can keep your food items fresher in the cleaner condition (Tested by Intertek). This refrigerator features a MOIST ‘N' FRESH, an innovative lattice-pattern box cover to help maintain the freshness and moisture levels inside the appliance. This feature prevents the formation of excess moisture, thereby enabling the vegetables and fruits to maintain its freshness levels. With a simple switch, FRESHBalancer keeps your vegetables and fruits in its optimal condition respectively by adjusting the right amount of humidity.The optimal space for smaller items such as deli, and cheese in the proper temperature.The user-friendly designed wine rack can store up to 4 bottles of sparkling wine in an optimal temperature. DoorCooling+ and Multi Air Flow provide cold air where it is easily lost, keeping your food fresher. its InstaView Door-in-Door has a sleek mirrored glass panel that illuminates with two quick knocks, allowing you to see inside the easy access compartment without ever opening the door, reducing cold air loss to help keep food fresher longer.