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No big box hanging under the dash or taking up knee room. The Curt Echo mounts out of sight beneath the dashboard, just 3-3/8" long x 3" wide x 7/8" thick. It connects to your phone over Bluetooth, so you adjust everything from your screen instead of using a physical display. You get a clean, factory-style interior and still have full control of your trailer brakes right from your phone.
The Echo pairs to the OneControl app (Apple 5.0+ or Android 4.3+) and puts all settings in your hand. You can adjust maximum brake output, change sensitivity, or hit manual override directly on the screen. The outer ring shows live brake power as you apply pressure, and you can toggle features like hazard light protection. Once set up, the system runs off your saved settings even if Bluetooth disconnects, so braking stays safe and consistent.
If you tow more than one trailer, this system saves time every trip. The app stores multiple trailer and vehicle profiles so you can recall each setup instantly instead of re-tuning every time. Just swipe in the app to load your saved configuration and go. It’s ideal for anyone managing a few different trailers or sharing one controller across several tow setups.
Inside the main unit is a 3-axis accelerometer that senses how hard you’re braking and matches your trailer brakes in real time. The result is balanced, proportional braking with no push-pull feel between truck and trailer. It works with 1 to 4 axles (8 brake assemblies) and supports electric trailer brakes for steady stops on any trip.
The included plug-in harness connects under the dash and plugs straight into the Echo for an easy install without unnecessary splicing. Mounting adhesive and zip ties are provided to secure the compact module anywhere under the dash. Thanks to its self-leveling sensor, you can place it at any angle—just pair it via Bluetooth, plug in the trailer’s 7-way connector, and it’s ready after a quick self-calibration cycle.
Customer Satisfaction Score:
88% were satisfied with this product
12% of customers were not satisfied
Ratings & Reviews
Kent E.
1/23/2018
Ive not had any trouble with the hitch or the brake controller. I can tow my tear trailer anywhere I want and the hitch protects my mufflers from damage when I go offroad. Nice extra benefit.
Howard S.
4/6/2018
Still working great. Not any problems. A great product
Biscuitsngravy
10/21/2014
I have enjoyed the use of the electric brake controller. The stops are always safe and smooth. Im glad I got it for my truck and Ive never had a problem with it. I just need to get out and use my camper more! The initial contact with etrailer.com was very favorable and I will do business with them again when I need something for my trailers or tow vehicles.
Jenny N.
3/18/2024
I reached out to Curt about the problems with the new app. They advised that the new app runs the same as the old app it has to run in the foreground unless they are using the button which is the same as the old app. They wanted to know if you were having trouble getting past that screen. Which type of cell phone do you have and which IOS are you using?
Ted
7/3/2015
Perfectly. No issues at all with wiring or controller.
Charles B.
6/9/2016
Worked fine, but sold vehicle 6 months ago.
Drew V.
10/10/2017
No issues, completely satisfied!
Peter
6/23/2022
So far, so good!
Matthew
11/25/2024
Still 5 stars, lots of trips including a long tow of over 5000 miles. Consistently worked flawlessly. Mild annoyance that they changed the app but once I learned how the new app worked it continues to function flawlessly.
Pat M.
11/21/2017
The EOH braking system works perfectly. You are my supplier of choice ifwhen I need additional trailer parts on the future.
Mark
5/29/2018
I used these products for 2 separate trips about a year apart. First trip was about 7500 miles and the 2nd about 3500. No issues. Have not used the tent trailer for about a year. Have a trip coming up in about 1 month and dont expect any problems with these products.
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Richard
3/8/2026
Product works perfectly. Easy install.