USB Heating Hand Warmer Velvet Autumn And Winter Warmth Washing Electric Heater Feature: USB heating, safe and fast heating. Different from the traditional electric hot water bottle, it does not contain a drop of water, it is safer without water and more convenient to go out. Simple to use, just connect the mobile power, you can enjoy the warmth anytime, anywhere. The heating is fast, no need to wait for the heating, the heating is stable, and the use is more comfortable. Use it outdoors, protect your hands, use it together, and share warmth. Lightweight design, easy to use at home and outside. Three speed temperature regulation, warm and controllable The blue light 42 C warms the shoulder and neck, the green light 48 C warms the hands and feet, and the red light 55 C warms the uterus and abdomen Size: 27cm X 16cm Material: flannel Package Content: 1 X Hand warmer Note: Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays.