Dual zone temperature control features independent control for freezer and cooler zones with a cooling range of 4 to 68 degrees for optimal storage flexibility Multiple power connection comes with a DC12V or 24V power cord and AC or DC adapter allowing easy connection to vehicle power or household outlets for versatile use Energy saving and battery protection equipped with MAX and ECO modes along with three battery protection levels to prevent battery drain and ensure longevity User friendly design includes retractable tie rods sturdy wheels built in LED lighting and a USB charging port for convenience and ease of use Low noise and anti shaking operates at less than 45 dB for quiet use and includes a 30 degree shockproof function for stable performance on rough roads