? Advantages: 1. You can carry a USB car adapter and LCD screen for easy travel. 2. The product is the best product in the world, using international advanced TEC cooling technology to ensure that users can easily carry and store biological agents at high temperatures. 3. This product is available in a variety of power sources (home adapter, 10200mAh lithium battery.) 4. The product can maintain a temperature of 2 8 C when the ambient temperature is lower than 30 C. ?Specifications: ?Product Name: Insulin-only refrigerated box ?Material: Aluminum liner electronic components ? color: white ?Dimensions: 21 × 9.5 × 10.2cm ?Internal size: 17.5x6.7x2.3cm ? Battery life: 8 24 hours ?Rated voltage: external DC-12V ? Refrigeration temperature: about 30 C below ambient temperature ? Capacity: 5L and below ? Temperature adjustment range: 2 18 C ? Built-in battery capacity: 10200mAh ?Rated power: 9W for 15W battery when external power supply ? Shape: box type (open up) ? Principle: semiconductor refrigeration intelligent frequency conversion ?Function: Cooling, heating, constant temperature ? Power: 2 options - Power adapter, built-in rechargeable battery ? Charging time: 5-7 hours full in the boot state, 4-5 hours in the off state ?Packing: 1 Insulin cooler for cars, travel, home 1 home adapter 1 carrying case 1 data line 1 Instruction 1 lithium battery? [After-sales service] Our store uses international logistics, and the estimated arrival time is 10-20 days. If you have any questions during the first time of receiving the goods, please feel free to contact us by email and wish you a happy shopping. ?[Charging method] It can be used for long-term plug-in, and supports various charging methods such as car, high-speed rail and airplane, which is convenient to carry. ? [portable] to solve the problem of medicines such as insulin, interferon, growth hormone, eye drops, serum, etc., easy to carry. ? [Size] External dimensions: 21 × 9.5 × 10.2cm, internal dimensions: 17.5x6.7x2.3cm. ?[Material] panel adopts integral UV treatment, wear-resistant, transparent and bright, intelligent control.