Key benefits Ergonomic full coverage warmth: The design delivers heat from the palm to the fingers for comfortable, allaround warmth during cold days. Safety focused construction: Balanced heat dissipation, a security chip, and continuous temperature monitoring provide reliable, worry warmth. Fast and lasting warmth: Twolevel temperature adjustment with 5second heatup delivers immediate warmth and maintains a steady temperature to keep hands cozy. Portable and easy to carry: Lightweight, compact form with a lanyard for wearing on the wrist. Fits easily in bags or pockets for warmth on the go. Features Function: Rechargeable hand warmer that provides heat coverage from palm to fingers with quick heating and adjustable temperature. Temperature performance: Twolevel temperature control and rapid 5second heatup for rapid comfort. Safety: Builtin safety features include balanced heat dissipation, a security chip, and realtime temperature monitoring to ensure safe operation. Size and portability: Lightweight and compact design designed for easy transport in pockets or bags; includes a lanyard for hands carrying. Scenarios and applications Outdoor commutes and activities: Use while waiting for buses or trains, walking in chilly weather, or during outdoor sports and dog walking to maintain warm hands. Travel and onthego warmth: Ideal for airports, flights, or long trips where hands may be exposed to cold cabin or environmental conditions. Office, home, and leisure: Keeps hands warm during long work sessions, cold rooms, or relaxing at home without bulk or inconvenience. Notes Designed to fit comfortably in hand with a focus on safety and reliable warmth. No additional accessories beyond the included lanyard are required for everyday use.