So you don’t need to use the calculator case for awhile? You are worried about pressing the buttons while it is in your pocket? There is a solution built into every case, the ON/OFF Switch. Located on the bottom of the case there is a physical switch that when flipped will turn the case on or off.
When switched to the ON position, it will stay on until it detects no activity for 4 minutes and then it will turn itself off again automatically. You can turn it back on again by pressing the CE button. If you’re finished with the calculator function and want to place your case in your pocket or purse, you should slide the ON/OFF button back to OFF so that you don’t accidently press the CE button while it is in storage and drain the battery.