Warmth in a small package! The H01 Pro Hand Warmer from the folks at Ocoopa is your best friend on a cold day. This little guy is rechargeable, waterproof, dustproof, and crack resistant. It has a smooth feel to it so it’s very comfortable in your hand, and the slim shape and stretchy, silicone lanyard make it easy to hold and carry. On the ski slopes or on a mountain trek, a full charge will give you a whopping 15 hours of warming time. In a bit over 3 hours, the 10,000mAh battery will be ready to deliver three levels of warmth: low (95-107 degrees), medium (104-118 degree), and high (118-131 degrees). As an added bonus, not only will it warm up your hands, but it will also charge an external device with a USB port, like your phone! How great is that?! Don’t let cold weather keep you from enjoying the outdoors; get the Ocoopa H01 Pro Hand Warmer!