Feature: 1. Semiconductor Refrigeration: The insulin cooler box relies on a direct current powered, thermoelectric refrigeration module to generate and distribute a low temperature to the medicine box semiconductor. Heat is then removed through the radiator with the help of a fan. 2. LED Display Screen: Allows for temperature adjustment ranging from 0 to 18℃, and real time monitoring of temperature, battery power level, and fan status through an LED display screen. 3. Oxidation Process: The rounded aluminum liner prevents medication collisions, while the anodizing process keeps a cool temperature. With added adapters, chargers, and a car USB interface。 4. With Handbag: The insulin cooler box is compact and lightweight, complete with a custom handbag that prevents scratches and breakage, providing superior protection for the instrument during transport. 5. Perfect For Hospital: This insulin cooler box can be powered with versatility, applicable for use in travel, home, office, vehicle, pharmacy, hospital, and other environments. Specification: Item Type: Mini Insulin Refrigerator Material: ABS, acrylic, electronic components Battery: 1pc NCR18650B lithium battery pack (not included) Temperature Adjustment Range: 0-18℃ Voltage: 5V 3.4A. Power: 10W Main Machine Size Of Refrigerator: Approx. 210 x 95 x 103mm / 8.3 x 3.7 x 4.1in Refrigeration Room Size: Approx. 175 x 60 x 25mm / 6.9 x 2.4 x 1in Refrigeration Room Capacity: 3-5 insulin pens or about 10 insulin pens can be put. Power Supply 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. Product Principle: This product uses thermoelectric refrigeration components, that is, semiconductors to realize refrigeration. On special semiconductors, low temperature is generated by direct current and transmitted to the medicine box, and the heat is dissipated by the radiator through the fan. Product Characteristics: Intelligent temperature control, LED liquid crystal display, semiconductor instantaneous refrigeration technology, stable performance, long life, low noise and no fluorine pollution, small size, light weight and easy to carry. How to Use First, the method of use: 1. Power on: ① External power supply: When there is no built-in lithium battery in the host, when the power adapter or USB power supply is connected, the machine will beep to indicate that it is powered on, and the machine will automatically detect whether the battery is installed. If there is no battery, the full battery will be displayed on the screen. 2, switch machine: ① Boot: Press the power button for 1 second, and after a beep, the screen will light up, and the temperature will show the current temperature in the box, as well as the battery charge and the working state of the fan. ② Shutdown: press and hold the power button for 3 seconds to shut down. After shutdown, if there is a battery in the machine, only the power mark will be displayed on the screen. 3. Setting temperature: The temperature setting range of the refrigeration box is 0-18℃. Press the ▲▼ key directly, and the temperature will flash. At this time, the required refrigeration temperature can be set. Second, the power supply mode 1. Power adapter: If there is no lithium battery, the power adapter can be used. 2. USB power cord: it can be connected to mobile phone USB charger, charging treasure and car USB converter. Pay attention to the voltage of 5V and 2.1A when using USB, otherwise it will burn. Third, the fault analysis 1. The machine does not cool at all: The interface of the cooling chip may be loose or the cooling chip may be damaged. 2. The displayed temperature exceeds 30℃: Check whether the fan works and whether the ventilation hole is blocked. 3. The temperature is not too cold: Check the set temperature, check whether the cooling hole is blocked, whether the ambient temperature exceeds 35 degrees Celsius and is too high, the cover is opened too many times, and the opening time is too long. 4. The screen shows E1: The temperature sensor is faulty and needs to be replaced. 5. Excessive noise: Check whether there are sundries in the fan.. Package List: 1 x Mini Insulin Refrigerator 1 x Handbag1 x USB Cable Note: 1. The refrigerator can not contain water to avoid liquid contact;2. The ventilation holes at the bottom and both sides keep the air smooth, and the cooling holes must be aligned with the cooling holes of the backpack when the portable backpack is installed. This product is strictly forbidden to be put in a sealed bag, which will cause poor ventilation and the temperature in the machine will rise and damage the medicine.3. When you go out, please prepare the power supply mode reasonably according to the length of travel time to ensure the normal use of this machine.