High-performance Voltage Tuning grounding unit, using transparent sheath cable. Extends battery life. Prevents battery deterioration, restores charging capacity, extends battery life, pulse generator, desulfation. Brace Voltage Tuning Parts Thunder Up Pulse Generator - Restores battery charging capacity! Easy setup, just connect to the battery! Red positive, blue negative. Please check the images for any scratches, as this is based on individual opinion. Desulfation with pulse waves. Power supply becomes smoother, and the original performance of spark plugs and electrical components begins to be exhibited. 【Features】 Torque up: Due to stable voltage supply Response up: Due to voltage stabilization Starting performance up: Due to stable battery voltage Reduced load on electrical components: Stable operation due to stable voltage supply Headlight illumination up: Due to stable voltage Battery life extension: Due to desulfation Compatible vehicles: DC12V domestic cars (gasoline/diesel) Incompatible vehicles: DC24V vehicles, motorcycles, foreign cars, vehicles with two 12V batteries (e.g., Land Cruiser), EVs, e-power, hybrid vehicles - Model name: Voltage Tuning Used for about two weeks, so it's still in good condition. Operation confirmed.