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Big brake boxes can clutter the cab, but this one mounts out of sight. The Echo’s main unit tucks neatly under the dash—just 3-3/8" long x 3" wide x 7/8" thick—keeping your interior clean and knee room open. It uses a plug-and-play custom harness, so there’s no splicing or dangling wires. Once installed, it blends in completely while still doing all the heavy lifting behind the scenes.

No knobs or extra screens needed. Pair it once through Bluetooth and use the OneControl app on your smartphone (Apple 5.0+ or Android 4.3+) to manage everything—brake power, sensitivity, and manual override. The big orange button in the app acts as your manual brake control for quick corrections or emergency stops, and you can check brake output through the ring indicator on screen. Even if Bluetooth drops, it keeps running safely on the last settings you saved.

Hard stops or light taps—the trailer follows right along. The internal 3-axis accelerometer senses how fast your vehicle is slowing and applies matching force to the trailer brakes. That means smooth, even braking across 1 to 4 axles (8 brake assemblies) whether you’re using electric trailer brakes. It keeps tires from locking up and eliminates that push-pull feeling on downhill grades.
If you haul more than one trailer, this controller makes it simple. The app lets you store multiple trailer profiles so each one has its own preset brake output and sensitivity. Just swipe to select the setup you want before heading out. That’s a big time saver when switching between rigs—no need to recalibrate or start from scratch every trip.

With an adhesive pad, zip ties, and custom harness included, setup is straightforward. Plug into your vehicle’s factory tow port, pair with your phone in about five seconds via Bluetooth, and let the LED go green after calibration. Mount it at any angle—the accelerometer automatically detects direction—and you’re ready to tow with confidence.



Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews

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.
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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?