If you own a Nokia 5110 mobile telephone, you, too, can now take this great opportunity to use SuperSound when calling. All you need to do is check the IMEI number on your telephone. You can determine this number using code *#06# directly from the keypad of your mobile telephone. If your IMEI is 490522/30/026899/0 or higher, SuperSound is already active on your telephone, and you are already enjoying its benefits when calling. If your IMEI is lower than 490522/30/026899/0, you need to activate SuperSound manually. To do this, use activation code *3370#. Upon entering this code, you can instantly begin to make use of all the benefits of SuperSound technology.