Tested working may need a little cleaning on the inside but otherwise excellent condition.

The Heart Interface Freedom Model 15 Inverter is a reliable and high-quality power inverter designed for vehicles. This inverter, with a 12V input voltage and 120V output voltage, is ideal for powering various electronic devices while on the road. It features an on/off switch for easy control and is proudly manufactured in the United States by Heart Interface. With this inverter, users can enjoy the freedom of using their favorite electronic devices without worrying about running out of battery.