Designed for those who challenge the outdoors. Whether you’re hiking, skiing, or working in freezing temperatures, UT4 Extreme delivers unstoppable warmth and durability.
Instant Heat-Up
3 Adjustable Heat Levels
Each Battery Life — Lasts 6–16 hours per charge.
IP56 Waterproof Protection
Ocoopa is the only dedicated rechargeable handwarmer brand focused on complementing your lifestyle. With over 5 million users worldwide, we deliver the perfect palm of warmth to everyone.
