●??【ROOF AC HEATER COMBO FOR YEARLONG ENJOYMENT】Whether youre battling the heat or want to stay warm in the winter, a 12V DC air conditioner not only cools your RV, but also heats it. The high cooling capacity of 9,000 BTUs and powerful heating capacity of 4,000 BTUs can cover a larger space of up to 130 square feet. With electric power, expect to save up to $6,000 per year in fuel costs. ●??【INVERTER COOLING AND LOW NOISE TECHNOLOGY】Our inverter RV ac unit will adjust its operating frequency according to the environment, intelligently, thus reducing energy consumption. The air conditioner is equipped with a household-type ultra-quiet evaporator that operates at 45dB or less, creating a quiet space. ●??【FAST COOLING OR HEATING, NO MORE LONG WAITS】The camper 12v a/c unit features a professional-grade 20cc scroll compressor with R-134A refrigerant and a maximum 3,000-speed motor that quickly cools a 29-foot trailer in less than 10 minutes and ensures fast air flow. ●??【REMOTE CONTROL AND LARGE FAN】Fitted with an easy-to-use remote control and LED display for convenient monitoring and settings. The large fan effectively transfers heat away! ●??【SUPERIOR MATERIAL, EASY TO INSTALL】The waterproof shell is made of sturdy ABS material with excellent resistance to deformation and corrosion for a long life. 12 volt ac kit includes the all-in-one roof top air conditioner as well as a full set of accessories and instructions to ensure smooth installation. ●??【WIDELY USED】Suitable for caravans, vans, travel trailers, buses, golf carts, excavators, agricultural machinery, caravans, boats, ships, construction vehicles, campers, big rigs, and more!