• All-Around Warmth for Cold Hands: 3 pieces of durable and safe carbon fiber heating element create a large heating area (two times larger than others in the market) to provide the maximum warmth around the front and back side of your hands.
• Premium Insulation: This hand warmer features flexible ribbed cuffs that help trap the heat perfectly, and ultra soft fleece-lined insulation that brings the warmth and comfort to the next level. 
• Functional Storage & Customized Fit: In addition to a battery pocket, two extra utility zipper pockets add quick convenient storage for your personal items, and one SlideLock keeps your valuables extra secure. Change the size to fit with the easy-to-adjust waist strap.
• Added Protecting from Elements: Wind and water resistant shell provides protection from wind and rain when you are watching games at the stadium, taking a rest at a hunting tour, or commuting to work. Easy care, machine washable.
• The heating elements are located on 3 heating zones: left & right front panel, middle back panel
• Adjust 3 heating settings (High, medium, low) with just a simple press of the button
• Up to 14 working hours (5 hrs on high, 9 hrs on medium, 14 hrs on low heating setting)
• Heat quickly in seconds with a rechargeable UL/CE-certified battery