• Bluetooth connection to control all brake settings from your smartphone • Custom-designed app monitors brake activity and sends status updates • Zero-tool, plug-and-play install between vehicle-trailer 7-way connectors • Triple-axis, motion-sensing accelerometer for highly responsive, smooth stops • Stores multiple vehicle-trailer profiles • Multi-color LED indicates power, trailer detection and wireless connectivity • Potted circuit board is sealed off from the elements for lasting durability • Retention strap and locking tab help keep Echo firmly installed into 7-way • Automatic calibration reduces setup requirements • Downloadable app available for Apple iOS and Android OS • Allows incoming calls to be received while app is running • Compatible with low-volt, PWM, ABS, cruise control and electric over hydraulic • Built-in reverse-polarity and short-circuit protection • Limited lifetime warranty • Assembled in USA Notes: • If Bluetooth connection is lost, the brake controller will continue to function safely, using the most recently programmed settings. • Warning: Avoid distracted driving. Only make adjustments when the vehicle is stationary. • Not compatible, but will not interfere, with Apple CarPlay or Android Auto