Disconnect from the wall and take your aerosol treatments wherever your need them. With the included DC Adaptor, you can power your PARI TREK® S compressor from the cigarette lighter outlet in your car for treatments on the go. When away from the home or car, the battery will allow you to take up to 50 minutes of treatment without recharging. The PARI TREK® S Power Pack for portable therapy wherever life takes you.