Free Shipping Threelead Differential Muscle/electromyography Sensor for Microcontroller Applications Specially Designed For Microcontrollers with small Form Factor (1inch X 1inch) Adjustable Gain  Improved Ruggedness New Onboard 3.5mm Cable Port Pins Fit Easily on Standard Breadboards APPLICATIONS:Video games, Robots, Medical Devices, Wearable/Mobile Electronics and Powered Exoskeleton suits