FAST HEATING OUTDOOR HAND WARMERS: Electric hand warmers give you instant double-sided heating in seconds. With graphene heating, it heats up quickly at the touch of a button. Provides plenty of heat to keep hands warm in cold weather outdoors and helps relieve pain from swollen, dry, and chapped hands3-LEVEL SMART TEMPERATURE CONTROL: The electric hand warmer pouch has 3 heating settings adjustable (50C - 59C - 65C/122F-138F-149F), just press the power button to choose the right one temperature. Hand heating pads provide plenty of heat to keep your hands warm in cold weatherPREMIUM WATERPROOF INSULATED MATERIAL: This hand warmer features flexible ribbed cuffs that help absorb heat perfectly, and an ultra-soft fleece lining for insulation that takes warmth and comfort to the next level. The waterproof and windproof high frequency pressed quilted cotton outer fabric and zipper ensure your normal use in more weather conditionsFUNCTIONAL STORAGE AND THOUGHTFUL DETAILS: Portable hand warmer pouch with adjustable shoulder straps and plastic buckle keeps your hands free at all times. In addition to a battery pocket, a practical zip pocket on the back adds quick and convenient storage for your personal itemsPORTABLE AND MULTIFUNCTIONAL USB INTERFACE DESIGN: This hand warmer pouch has a lightweight and stylish design that can be used as a bag or decoration. Designed with a USB interface, the heated glove hand warmer can be powered by your PC, power bank or car charger and can work for hours on a full charge. Youll be able to warm your hands during indoor and outdoor activities such as fishing, hiking, camping, and more Specifications: Size: one size, 46*18cmMaterial: Waterproof high frequency quilting cottonWeight: 0.26KG Package included: 1 x Heated Hand Muff