If you're looking for a convenient and safe way to control your trailer brakes, look no further than the CURT Echo Mobile Trailer Brake Controller, 7-Way / Bluetooth Connection. This black controller is designed for use with Android and Apple devices and provides a convenient and effective way to control your trailer brakes. With its Bluetooth connection, the CURT Echo Mobile Trailer Brake Controller makes it easy to control your trailer brakes with the touch of a button. Whether you're hauling a heavy load or just need to stop quickly, the CURT Echo Mobile Trailer Brake Controller is the perfect solution.