Take care of your body -- Allows you to get warm or cold days in a short time. Higher temperature in short time -- After powering on, the temperature goes up to 42℃ in 2 minutes, then it will continue to heat up to 58℃. Thanks to the power protection it will automatically turn off to prevent overheating. USB-C chargeable -- Its 4000mAh large capacity lithium battery is chargeable with USB-C cable for fast charging. Avocado pit is a switch -- The avocado pit is the ON/OFF switch. When turned ON, the avocado pit will softly bright up. Small and portable -- Its hand size makes it possible to take it with you in your bag. Fully charged it is convenient to use on the go. Material selection -- The avocado pit switch made of silica gel is smooth to the touch. The aluminum housing provides fast and even heat dissipation.