The CURT 51180 Echo™ Wireless Trailer Brake Controller brings trailer brake control into the modern age with a fully portable, smartphone-controlled design. Instead of mounting a controller inside the cab, the Echo plugs directly into your vehicle’s 7-way RV blade connector and wirelessly connects to your smartphone using Bluetooth.

Designed to control 2 to 4 electric trailer brakes (1–2 axles), the Echo uses a triple-axis motion-sensing accelerometer to deliver smooth, responsive braking that adapts to real-world driving conditions. The intuitive CURT Echo app—available for Apple iOS and Android—allows you to adjust brake power, monitor braking activity, receive status alerts, and store multiple vehicle and trailer profiles, making it ideal for shared vehicles, multi-trailer setups, and commercial fleets.

Installation is completely non-invasive and plug-and-play, requiring no wiring or dash mounting. The Echo installs inline between the vehicle and trailer plugs and features automatic calibration, eliminating complex setup. Built for exterior mounting, the weather-resistant, potted enclosure protects internal electronics from the elements, while a multi-color LED indicator provides instant feedback on power, trailer connection, and wireless status.

Compact, durable, and easy to move between vehicles, the CURT Echo is a powerful solution for drivers who want advanced brake control without permanent installation.

Key Features & Benefits

• Wireless, smartphone-controlled trailer brake controller

• Controls 2–4 electric trailer brakes (1–2 axles)

• Bluetooth connectivity via CURT Echo app (iOS & Android)

• Triple-axis motion-sensing accelerometer for smooth, responsive stops

• Automatic calibration reduces setup time

• Multi-color LED indicates power, trailer detection, and connection status

• Portable design easily transfers between vehicles and trailers

• Stores multiple vehicle and trailer profiles in the app

• Weather-resistant, potted enclosure for exterior mounting

• Plug-and-play, non-invasive installation between 7-way connectors

• Built-in reverse polarity and short circuit protection

• Backed by a CURT limited lifetime warranty (1-year finish and parts)

Specifications

• Brand: CURT

• Part Number: 51180

• Controller Type: Time-delay

• Brake Type: Electric trailer brakes

• Brake Systems Supported: 2–4 brakes

• Axles Supported: 1–2 axles

• Reverse Function: Fully functional

• Display Type: Multi-color LED indicator

• Smart Technology Compatible: Yes (Smartphone app)

• Leveling Required: No

• Wiring Harness Included: Yes (inline 7-way connection)

• Trailer Disconnect Alarm: No

• Estimated Install Time: ~1 hour