1. Press and hold the STATIC CORRECTION KEY on the Pet Collar Unit for 3 seconds. The static correction level indicator will blink. 2. Press the STATIC CORRECTION KEY again to increase or decrease the level. 3. Press and hold the STATIC CORRECTION KEY for another 3 seconds to confirm the level that you have selected on step 2 above. 4. Press the POWER KEY once to check the current level of correction. The Static Correction Level Indicator on the Pet Collar Unit shows the current level of correction (from 0 to 9). View a chart of levels 0-9 on pages 12-13 in your user guide.