[LED Digital Display]A quick look tells you everything-no more guessing games in the cold! Our electric hand warmers come with a built-in LED display. It shows exactly how much juice is leftso you wont be caught off guard when hunting or work outside. The clear display on these rechargeable hand warmers also tells you your current heat setting. Whether youre studying in school or typing at your desk, you could be in control of cozy with a press to the button [ Palm-sized Hand Warmers Rechargeable 2 Pack]Our two included lanyards let you loop the reusable hand warmers on your wrist. Each unit is only 0.6 inches thin and 2 oz weight, smaller than ID card and lighter than smart phone. You can easily slip them into pockets, gloves and socks to warm your hand and foot. Lightweight and small enough, these magnetic hand warmers are your ideal hunting essentials & camping gear & stocking stuffers [4 Heating Levels]Our rechargeable hand warmer has 4 temperature settings(ranging from cozy 100.4