For maximum shaving performance, we advise you to replace the shaving heads every two years. The shaver is equipped with a replacement reminder which reminds you to replace the shaving heads. The replacement reminder lights up white continuously and the arrows flash white. You will hear a beep that lets you know when the time has come to replace the shaving heads.
Note: After replacing the shaving heads, you need to reset the shaver by pressing the ON/OFF button for 7