This combo pack includes a Prospera mini massager and a back percussion massager. The Back Therapy Percussion Massager is perfect for relieving aches, pains, and knots in your back. Get to those hard-to-reach spots with its long handle, and help your body heal through muscle recovery., improved blood circulation, and relieved swelling and pressure. Lightweight, portable, and cordless, this massager is perfect for on-the-go. It requires 4 AA batteries, not included. Product Specifications:  Powerful back massage  Enhances blood circulation  On and off button  Easy to use Portable Light weight  Features: Easy Setup Base Material: 100% Plastic Care: Keep In A Dry Location Country of Origin: Imported