Just one charge of the Go Warmer keeps your hands warm and comfy for up to 8 hours on the low setting. It's like putting a portable heater right inside your jacket. And with included gift boxes, they’re perfect for sharing. What You Get 2 Go Warmers each individually packed in white gift boxes Lithium Ion battery installed USB charging cables InstructionsTo warm both hands at the same time and you control the comfort - Low, Medium or High Up to 89 degrees F on Low setting Up to 104 degrees F on High setting Doubles as a power bank Allows you to charge any USB device GOWARMER COZY HAND WRAP WITH BELT + ZIPPER Two pockets for each hand Zipper pocket for Go Warmer Adjustable elastic belt with buckle for wearing around your waist More Features Each Go Warmer comes in its own individual white gift box 3-in-1 unit (handwarmer, dual power bank and flashlight) Approx. 12"L x 7"W x 2.5"H Weight: Approx. .29 lbs. Material Composition: Aluminum case 13%, Plastic 18%, Battery 64%, PCB 5%, Battery type 2 Lithium Ion rechargeable cells; 18650; 1800 mAh Voltage: 3.7-