Product Description: Quantity: 1pc Color: pink A hand warmer with constant temperature: Fast heating with constant temperature about 50 can give you warm but hot feeling. Warm hands mode: double-click on the warm hands function, double-click again to close the warm hands function; click on the gear adjustment, there are low-temperature and high-temperature grades to choose from; Mobile Power Mode: When the hand-warming mode is not turned on, the production can be converted into a mobile power supply to charge the mobile device using a conversion head. Portable: Hanging silicone ring, comfortable to the touch, non-irritating and environmentally friendly, put on the wrist, backpack, cabinet, etc., easy to carry and store, suitable for outdoor use. Safety: Intelligent temperature control, overheating protection, escort your safet