Features Introduction All-in-one design, simple installation, smaller volume than similar products volume compared to similar products. ABS plastic shell with sleek design Card spring tri-pin plug, external power supply easier to connect and is shaped like the Chinese character "品", making it easy to connect to an external power source. Thickened fuel tank safe and reliable Rich motherboard configuration: 1. Standard reverse-polarity surge controller, 2. Plateau and plain mode compatible, 3. Upgraded voice remote control Panel; Rich mainboard configuration: 1. Comes with anti-reverse and surge protection controller, 2. Compatible with two modes: high-altitude and plain, 3. Upgraded voice remote control panel. Patented Product with Regional and Price Protection Wide Range of Uses Truck type: 1. Heater located at co-driver footwell; 2. Heater located at right shoulder of cab; 3. Heater located at driver Under seat back; Heater in toolbox. For trucks: Heater at footwell passenger side; 2. Heater located on the right shoulder of the driver's cab; 3. Heater located underneath the backrest of the driver's seat; 4. Heater located inside the toolbox. RV type: 1. Heater located in front of co-driver seat; 2. Heater located between driver and co-driver seats; 3. Heater located at cargo hold For RVs: 1. Heater Located in Front of Passenger Seat; 2. Heater Located in Trunk; 3. Below Heater located between the driver and passenger seats; 3. Heater located underneath the cargo area; 4. Heater located inside the luggage compartment. Sedans: Five-seat Sedans, Seven-seat Sedans, Mainly Installed in Vehicle Cabins or Trunks. For Cars: For both 5-seater and 7-seater cars, the heater is mainly installed in the passenger compartment or the luggage compartment of the vehicle. Electric Vehicle Types: 1. Heater below dashboard; 2. Heater below passenger seat; 3. Heater in engine bay For electric vehicles: 1. Heater located below the dashboard; 2. Heater located below the passenger seat; 3. Heater located inside the front compartment.