Intense Heat, Built for the Coldest Adventures
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.
Weight: 1.54 lb (0.7 kg)
