[Just wrap it around a bottle, drink insulation belt that can be shaped by any shape] It is a heat insulation belt for heat-generating drinks that allows you to drink hot drinks while they are warm until the end. It is perfect for those who like hot drinks and for the cold season. This product is wrapped directly around the drink and kept warm with a heat-generating organ mounted on the inside. The power supply is USB power, and it is useful as a companion during work on a desk such as a computer. It is also equipped with a temperature adjustment function, and it can be entered into temperature adjustment mode by pressing and holding the power button for 1 second. From 37 to 55°C, the temperature setting of your choice is possible. * In the case of a 5V/1A power supply, the heat preservation function is the basic application. Part of the inside is made of Velcro, so any bottle can be used as long as it is round. In addition, as a slightly unusual use, it is also useful as an "electric warmer" using a mobile battery. (Use only with a voltage of 5V/1A) [Details] ■ Set contents: Main body, charging cable, instruction manual ■ Material: PU, Nichrome ■ Size: about 31×11.5 cm ■ Weight: about 130 g ■ Input: 5V2A/10W〜12V2A/24W ■ Configurable temperature: 37-55°C