The Clarisonic Body Brush Head smoothes skin and reduces dry patches. Only for use with the Clarisonic PLUS and PRO models. When the Body Brush Head is attached, the Clarisonic PLUS and PRO handles switch to Body Mode and the T-Timer® is automatically set to three minutes. Pressing the speed button while in Body Mode toggles between constant and pulse settings. The pulse setting is great for the head/neck area and provides a different sensation than the constant setting