Karbon Heated Socks Unisex with 2 Rechargeable Batteries S/M

Stay warm and comfortable all day with these Karbon Heated Socks, designed for men and women. Made with a premium merino wool blend, they feature 3 adjustable heat settings and can be controlled via your smartphone or directly on the sock battery. A YKK zippered pocket securely holds the included rechargeable batteries. Key Features: Includes 2 rechargeable 5V/2400mAh lithium-polymer batteries 3 heat settings with phone or on-sock control 4-level battery indicator with up to 6 hours charge time Anti-bacterial treatment for freshness YKK zipper pocket for secure battery storage Waterproof and breathable Composition: 57% acrylic, 25% merino wool, 8% polyester, 7% nylon, 2% rubber, 1% spandex Sizing: S/M: Men 5–8 / Women 6.5–9.5 Includes: 2 rechargeable lithium-polymer batteries 1 charger (CSA/CETL) 1 USB charging cable Instruction manual (APP control supported) Specs: Dimensions: 17.78 × 6.35 × 39.70 cm (7 × 2.5 × 15.63 in) Weight: 0.77 kg (1.70 lb)