Down Hand Warmer Bag Digital Display Rechargeable Explosion-proof No Hot Water Bag Graphene Knee Pads Warm Hand Warmer

Heating method: far infrared heating Item number: Upgraded black technology: down cotton filling + technology washed fabric + 3-speed digital display + hidden zipper pocket + multi-functional metal button + 65 ° heating plate Power mode: USB Type of hand warmer: hand warmer Product Category: Hand Warmer Model: Heating hand warmer bag Rated power: 5 Whether it has built-in battery: no battery Product net weight: 80g Packing volume: 31.5 * 28.2 * 5 Rated voltage: 5