Hotdot Rechargeable Hand Warmers (2-Pack) deliver compact, reliable warmth for everyday carry, commutes, and cold-weather activities. A clear LED screen shows °C/°F and remaining battery so you can check heat and power at a glance. Smart display: Real-time °C/°F temperature and battery status. 4 heat levels (approx. 104/113/122/131°F 40/45/50/55°C): Match comfort to the environment. Fast start, long runtime: Warms in ~1 second; up to 20 hours on select settings (actual time varies with level, ambient conditions, and usage). Lightweight & secure: About 63 g per unit; ergonomic grip; includes lanyard. 2-pack flexibility: Warm both hands, alternate, or share; fits inside gloves or pockets. Use cases: Commuting, camping, hiking, fishing, winter sports, and cold-exposed work.