Shell: 55% Polyester, 20% Nylon, 20% Polyurethane, 5% Elastane Imported Soft fleece inside, anti-lost buckle, adjustable wrist strap and drawstring cuff 【3 Selectable Heat Settings】Heated mittens have three selectable heat settings(high, medium, low) to make sure you can find the exact warmth you need to be comfortable. Heat spread to the entire hands within 30 seconds after turn on and keep you away from the cold anytime. 【Lightweight &Warming】Savior heated mittens keep fingers together, which effectively keeps them warmer than when fingers are separated in gloves. Adopt a waterproof coating process on the outer fabric can provide excellent warmth even in skiing. And you can easily adjust the heated mittens to the most comfortable fit by the wrist strap. 【Wide Heating Area】 Large far infrared heating elements are perfectly placed on the back of the hand and fingertips so the heat circulates throughout your entire hand for complete warmth. 【Certificated Long-lasting Battery】A pair of 7.4V 2200mAh rechargeable batteries guarantee a long-lasting heating time of up to 6.5 hours. The dual-DC output enables you to charge two batteries simultaneously at high speed. It can really save your time. Upgraded wall charger with USB port convenient for you to alternative use with the mobile phone. 【What You Get】1x Rechargeable Heated Mittens, 2x Polymer Lithium Batteries,1 x USB Dual Charger, 1 x Drawstring Storage Bag, 1 x User's Manual, 1 x Gift Box. Multiple size suitable for men and women. An ideal winter gloves for lover, parents and friends in Chirismas, Thanksgiving or memorial holiday. SAVIOR HEAT Heated Mittens for Ski, Snowboard