portable electric hand warmer fast heating warm artifact hot water bag

2026 new model hand warmer, maintains a constant temperature of 58°C, with a battery life of 12 hours. Features graphene heating, is safe and explosion-proof, and includes overcharge protection. Lightweight and portable, multi-functional, a hand warmer and power bank in one. Keeps you warm throughout the winter. Certified under CE standards, ensuring quality. Suitable for gifting or personal use, conveying warmth and kindness.