Glovii heated clothing is a unique solution allowing you to maintain thermal comfort even on the coldest days of the year. Glovii products stand out, thanks to the use of heated carbon fibres, which have a positive effect on blood circulation by emitting infrared waves. Glovii clothing was designed with sportspeople in mind, especially those practising winter sports. It\x92s also a perfect solution for bikers, construction workers, hunters, photographers and elderly persons. Features: The heating element is constructed from carbon fibres offering extraordinary reliability and durability as well as medical properties, thanks to infrared waves The heating element is located at the front and the back of the vest, thanks to which the heat is evenly distributed Technical Specifications: Battery: 4000 mAh (29,6 Wh); Li-Ion Built-in energy gauge Heating element: 9 W - carbon fiber The heating element is located at the front and the back of the vest Modes: 33% (LO), 66% (MED), 100% (HI) Working time: 8 h (LO), 5 h (MED), 3 h (HI) Fabric: 100% polyester Charger: 8.4 V, 1.2 A Sizes: M, L, XL Weight without batteries: 250 g Weight with battery: 440 g Glovii 7V Battery Heated Fleece Vest