3 In 1 Portable -- Hand warmer + neck warmer + power bank : not only can warm your neck, but also a winter warmer that can warm your hands and stomach at the same time Portable Neck Hanging -- New designed hanging neck heater, placed on the neck,control heating ring fits the neck with fixed temperature (48C ) and 3 adjustment temperature levels for hands warmer, Just need to press the on/off key and touch the switch for 2-3 seconds, when the screen shows "88",which indicates on status;and the hand and neck warmer will start heating;Double click the "ON"button,only the hand warmer works,when the screen shows "00",which indicates OFF status Large-Capacity -- 5000mAh capacity can be as mobile pocket power bank, not only can power smart devices, but also can be used as a hand warmer. It has a double-sided heating element,Charging 4 hours, Working 2-5 hours Compact and Portable -- The hand warmer is ultra-light,As light as a mobile phone, easy to carry around, You can free your hands and take it to anywhere and easy to put in bags Widely Used -- Suitable for outdoor sports skiing, cycling, roller skating, indoor sports, office, gym, travel and camping Delivery quantity: 1pcs Product colour: green