The prices of our products do not include tax; please contact customer service privately for tax calculations Model: A1/A2/A3 Battery: 4000mah/3.7VA1A2 models can be upgraded with a 5V battery, or a certified battery can be ordered separately A3 model with 5V/4000MAH battery Glove material: waterproof nylon fabric + cotton lining Size: One Size Size: 30*15*6cm Weight: Battery box model 0.2kg Battery version 0.4kg Insulation duration: 3 to 8 hours; after a certain usage time, it will automatically shut off if not in use Charging time: 6 to 8 hours. The indicator light on the data cable turns green when fully charged Heating area: Five fingers + back of hand Features: Three-level temperature adjustment, warm, waterproof gloves that are prone to water ingress; it is recommended not to use them for extended periods on rainy days