• Spare battery pack for recharging.
• Suitable for Steiner radiator gloves and mittens. 
• The gloves or mittens to keep you warm all day long.
• Just charge and go!
• Electronic battery powered heating system.
• 3 level heating control with optimum duration for 8.5 hours.
• Sold as a pair. 
• Battery weights 85g.
• Battery fits inside gloves in small pouch.