Use system default vibration pattern

        <item>MODEL=XT907:MANUFACTURER=motorola,30</item>

        <!-- Sony Xperia Z -->

        <item>MODEL=C6603:MANUFACTURER=Sony,35</item>

        <!-- Default value for unknown device -->

        <item>,20</item>

        <!-- Default value for unknown device. The negative value means system default. -->

        <item>,-1</item>

    </string-array>

</resources>

    <!-- Units abbreviation for the duration (milliseconds) [CHAR LIMIT=10] -->

    <string name="abbreviation_unit_milliseconds"><xliff:g id="milliseconds">%s</xliff:g>ms</string>

    <!-- The text that represents the current settings value is the system default [CHAR LIMIT=20] -->

    <string name="settings_system_default">System default</string>

    <!-- Option name for enabling or disabling the use of names of people in Contacts for suggestion and correction [CHAR LIMIT=25] -->

    <string name="use_contacts_dict">Suggest Contact names</string>

            @Override

            public String getValueText(final int value) {

                if (value < 0) {

                    return res.getString(R.string.settings_system_default);

                }

                return res.getString(R.string.abbreviation_unit_milliseconds, value);

            }

        });