Used and in great condition. I towed a Jeep Cherokee with this 5-6 times and it worked great. The wireless remote control allows you to adjust the braking sensitivity while driving, without having to stop and get out to adjust it. This comes with the brake buddy brake unit, remote control, and two dash connector wiring harnesses. You would need to buy two vehicle-mounted parts to have a complete setup (these items were left installed on my Jeep when I sold it):

1. Vehicle breakaway kit: $90

https://offerup.co/faYXKzQFnY?$deeplink_path=/redirect/

2. Vehicle dash mount connector: $50

https://offerup.co/faYXKzQFnY?$deeplink_path=/redirect/

Both parts are available on eTrailer for a total of about $140

The complete brake buddy 3 sells for over $1500 new. You would be saving over $800 by getting my used brake buddy select 3 and buying the two additional parts.