Feature 1Enhance car temperature, warm feet, remove frost and fog, perfect for cold winter use. 2Mute operation, low noise when working, bringing you an excellent using experience. 3400600W high power, dual air outlets, fast to heat, which has strong practicality. 4This machine is to connect battery or generator, energy saving and environmental friendly. 5Allows you to enjoy longlasting warm air in your vehicle. Compact size, easy to carry and store.Item Type: Car HeaterMaterial: MetalVoltage: 12VPower: 400-600WAccessories: Machine + double aluminum air outlet + double battery clamp + air switch + double clampControl Way: ManualScope of Application: Car heating or defrosting .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Heater Host2 x Tube2 x Battery Clamps2 x Metal RingsNoteAvoid to unmatch between positive and negative terminals.