Minn Kota Heading Sensor f-BlueTooth i-Pilot 
Heading Sensor for BlueTooth i-Pilot
This Bluetooth-enabled heading sensor contains a compass that detects your boat's heading and communicates it to your trolling motor to enable the Spot-Lock Jog feature, which lets you move your Spot-Lock 5' increments in any direction.
Available as an add-on accessory for PowerDrive and Riptide PowerDrive trolling motors that come pre-installed with Bluetooth i-Pilot systems (model year 2017 and after).
This heading sensor comes standard with updated Ultrex, Ulterra, Terrova, Riptide Ulterra and Riptide Terrova trolling motors that come pre-installed with Bluetooth i-Pilot and i-Pilot Link systems. (model year 2017 and after).
HEADING SENSOR ONLY. Compatible with Bluetooth-enabled i-Pilot systems only. This remote will only work with i-Pilot systems that are equipped with Bluetooth. It is NOT compatible with systems that do not use Bluetooth.
Refer to original remote or product manual that came with trolling motor to ensure system compatibility.
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.