Function: 1. Principle: The thermoelectric refrigeration module is used to generate low temperature on the special semiconductor by direct current and conduct it to the first aid kit, and the heater emits heat through the fan. 2. Touch screen: 0-18 can be adjusted, and the temperature, battery power and fan working status can be observed in real time on the LED display, which is suitable for storing various drugs at low temperatures. 3. Safe storage: The round arc angle of the aluminum insert prevents drugs from hitting the box, and the sandblasting anodizing process ensures a long-term cooling temperature. 4. Portable: The insulin cooling box is small and lightweight and comes with a custom pouch, while preventing the instrument from scratching and breaking, making it better protected. 5. Application: Connecting adapters, charging treasures, car USB interfaces, etc. can be used in travel, home, office, vehicles, pharmacies, hospitals and other places. Specification: Item Type: Mini Insulin Fridge Material: ABS, acrylic, electronic components Battery: 1pc Temperature control range: 0-18 Voltage: 5V 3.4A. Power: 10W Fridge main size: Approx. 210 x 95 x 103 mm / 8.3 x 3.7 x 4.1 inches Refrigerator compartment size: Approx. 175 x 60 x 25 mm / 6.9 x 2.4 x 1 in Cooler capacity: 3-5 insulin pens or approximately 10 insulin pens. Power mode: USB cable connection adapter, charging treasure, car USB interface, etc. Applicable places: Travel, home, vehicles, offices, pharmacies, hospitals and other places. Suitable for cold storage: Drugs and biological agents such as insulin and interferon that need to be refrigerated. Working Principle: This product uses thermoelectric refrigeration components, that is, semiconductors to realize refrigeration. With special semiconductors, the low temperature is generated by direct current and transferred to the drug container, and the heat is dissipated by the cooler via a fan. Product characteristics: Intelligent temperature control, LED liquid crystal display, semiconductor instant cooling technology, stable performance, long service life, low noise and no fluorine pollution, small size, light weight and easy to carry. How to use First, how to use: 1. Power on: ① External power supply: If there is no built-in lithium battery in the main device, when the power adapter or USB power adapter is connected, the device will beep to indicate that it is powered on, and the device will automatically detect whether the battery is installed. If there is no battery, a full battery will be displayed on the screen. 2, switch device: ① Boot: Press the power button for 1 second, and after the beep, the screen will light up, and the temperature will show the current temperature in the box, as well as the battery level and the working status of the fan. ② Shutdown: Press and hold the power button for 3 seconds to turn off the device. When turned off, if there is a battery in the device, only the power symbol will be displayed on the screen. 3. Setting the temperature: The setting range of the refrigerator temperature is 0-18. Directly press the button and the temperature will flash. At this point, you can set the desired cooling temperature. Second, the power mode 1. Power adapter: If you don't have a lithium battery, you can use the power adapter. 2. USB Power Cord: It can be connected to mobile phone USB charger, charger and car USB converter. Please pay attention to the voltage of 5V and 2.1A when using USB, otherwise the device will burn. Third, error analysis 1. The device does not cool at all: The cooling interface may be loose or the cooling system may be damaged. 2. The displayed temperature is over 30 degrees: Check that the fan is working and that the vent is not blocked. 3. The temperature is not too low: Check the set temperature, check whether the cooling hole is blocked, whether the ambient temperature is over 35 degrees Celsius and too high, the lid is opened too many times, and the opening time is too long. 4. The message E1 is displayed on the screen: The temperature sensor is defective and needs to be replaced. 5. Excessive noise: Check if there are foreign objects in the fan. Package List: 1 x Mini Insulin Fridge 1 x Bag 1 x USB cable 1. The refrigerator must not contain water to avoid contact with liquids; 2. The vents on the bottom and both sides provide smooth ventilation, and the cooling vents must be aligned with the cooling vents of the backpack when the portable backpack is installed. It is strictly forbidden to put this product in a sealed bag, which will cause poor ventilation and the temperature in the device will rise and damage the medicine. 3. When traveling, please prepare the power mode reasonably according to the travel time to ensure the normal use of the device.