• All-Day Warmth: Ocoopa Union 5s boasts a powerful 10000mAh battery, providing up to 15 hours of continuous heat. Be warm all day long.
• Rechargeable Core: The detachable, rechargeable battery core ensures you can refill your hand warmer for another 15 hours of outdoor warmth. Stay ready for any adventure.
• Instant Warmth: Experience 3-second heating with Ocoopa Union 5s. Temperature memory function ensures the perfect warmth from the start.
• Customizable Heat: With 4-level adjustable heat, Ocoopa’s precise temperature control technology lets you find your ideal warmth.
• 360° Heating: Enjoy 360° heating surface that spreads warmth from palm to fingertips in seconds.
• Style & Comfort: Match your mood or outfit with the sleek, non-slip finish, ergonomic design, and firm grip of Ocoopa Union 5s.