A great way to get both of these products for one low price. The AC adapter allows you to operate this pillow without using batteries. Simply insert the cord, and then plug into a standard wall outlet to enjoy non-stop vibration without ever switching batteries. The decorative massage pillow has a durable cover available in several colors, and features two speed pulsating action. Just lean back to activate the pressure switch. When weight is applied, the pillow will turn on, and when you get up, it turns itself off. The varied speed and intensity of vibrations make for a soothing massage for your back, neck, feet or legs. These products can be purchased separately, but you save money when you get this combo.