If you have ever experienced the soothing warmth of heated seats in your car then you'll love being able to bring that luxury to the golf course. Powered by a small rechargeable lithium battery pack with a built-in temperature controller, simply connect the battery, choose your power level setting and enjoy a nice, warm and comfortable place to sit while playing golf during those chilly spring mornings. Approximate heat output and duration Level 5 135°F 2 hours Level 4 120°F 3 hours Level 3 110°F 4 hours Level 2 100°F 5 hours Level 1 85°F 7 hours