Fast-heating 3-speed intelligent temperature control hand warmers. Waterproof, high-frequency pressed quilted cotton outer fabric with adjustable shoulder strap and USB interface. Ideal for outdoor activities. Size: 46 x 18cm. Weight: 260g. Features: 1. 3 Speed Intelligent Temperature Control: 50 - 59 - 65, to choose between by simply pressing the power button. 2. Fast Heating Hand Warmers: Electric hand warmer offer you an instant double-sided heat in just seconds, it heats up fast with the punch of a button, for plenty of heat to keep your hands warm in colder weather. 3. Considerate Design: Waterproof high-frequency pressed quilted cotton outer fabric and zipper to ensure your normal use in more weather conditions, design with adjustable shoulder strap, hands are free at any time. 4. USB Interface: With the USB interface design, the heated gloves hand warmers bag can be powered via your PC, power bank, or car charger, can work for up to multiple hours after fully charged. 5. Ideal Gifts for Outdoor Activities: The hand warmers is a perfect gift for your family members and friends in Christmas, birthday or special festivals, warm hand and body in cold weather, such as fishing, hiking, camping, and so on. Specification: Material: Waterproof High-frequency Pressed Quilted Cotton Color: Black, Khaki, Gray, Camouflage, Camouflage Sand, Camouflage Green Product Size: 46 x 18cm Product Weight: 260g Package Included: 1 x Hand Warmer Pouch