Used once, like new, tested Energy Saving: Car freezer has a protection system for different level H/M/L. The system can correspond to different startup voltage and shutdown voltage respectively. The strong compressor can make the empty portable fridge temperature to 0by MAX mode. WIFI+APP Control: AAOBOSI car fridge support touch panel or WIFI or APP connection (For Android & iOS). You can check or set the temperature, voltage, or cooling mode by APP. Please note: You must connect to WiFi for the first time. After the WiFi connection is successful, you can use your phone directly for a wireless connection without WiFi. Anti-Shaking: AAOBOSI 12 v fridge provides a silent and comfortable environment for you. Because of its overall smooth lines and equipped with a multi-functional non-slip base, the lateral displacement is greatly reduced. When your car is climbing at an inclination angle of 30 degrees, the camping fridge can still run stably. Our car fridge allows you to enjoy cold d