SparkFun MyoWare 2.0 Link Shield can connect a MyoWare 2.0 Muscle Sensor to an Arduino microcontroller. The shield provides a 3.5mm TRS jack to use a 3.5mm TRS-to-TRS cable to link the boards together. The MyoWare 2.0 Link Shield is equipped with snap connectors on the board to easily stack on the top side of the MyoWare 2.0 Muscle Sensor.