Complete the steps below. Please note that the Keddle will go inactive after 3 seconds of inactivity. It is recommended that you read all of the instructions below before starting otherwise the Keddle may turn off while you are trying to adjust the ding. 1) Hold the button to access the time menu (if you are using an older version of the Keddle, click the button instead of holding the button). 2) Hold the button in the time menu to access the settings menu. 3) To turn the DING ON or DING OFF in the settings menu, click the button. Wait 5 seconds for the Keddle to save and exit.