Stretch Polyester Fabric 88% Polyester, 12% Spandex Moisture Wicking Mesh Liner Chafe-free Flat-Lock Seams Mesh Sides Anti-Microbial Anti-Static 4 Selectable Heat Settings Bluetooth® 4.0 Wireless Control Integrated Touch Control Button Tri-Zone Heat Elements Powerful Rechargeable Lithium-Ion Battery Up to 10 Hours of Heat Per Charge Battery Rating: 7.4v, 2200mAh Charge Time: 3.5hrs Includes: (1) Primer heated shirt or pant (1) 7.4volt lithium-Ion battery (1) AC battery charger