OCOOPA Pack- Union 5s+ 1 Extra Union core Modular Hand Warmers Rechargeable, 10000mAh Battery Replaceable Handwarmer, USB-C Portable Charger, Perfect for Golf, Hunting Gifts Men

The world's first modular rechargeable hand warmer, the Ocoopa Union 5s, is composed of a Union core- 10000mAh battery bank and a Union case- heating housing.

It enables you to replace the battery or heat casing as needed.

In only three steps, you can alternate with a fully charged battery.

Refill your hand warmer in seconds for another 15 hours of warmth.

Swap and go.

Heat that lasts for 15+ hours.

Ocoopa Union 5s is equipped with a power bank with a capacity of 10000mAh, leading in a 20% improvement in energy density and minor weight increases.

It can deliver heat for up to 15 hours.

Accompany you throughout the day.

Faster Heat.

Larger surface.

Feel a comfortable warmth like you've never felt before.

The U5s features a uni-body high grade brushed aluminum casing with a 30% bigger heat surface than previous.

Spread the ideal warmth from your palm to your fingertips.