Target either shoulder with soothing heat and relaxing vibrations that provide comfort and relief from aches and stiffness in minutes. Features: Adjustable Battery Type: Lithium Ion Targeted Area: Total Body Measurements: 7 Length/Inches, 3.5 Width/Inches Cord Length (ft.): 4 Ft Base Material: 50% Polyester, 50% Cotton Care: Keep In A Dry Location Country of Origin: Imported