Autotether is a wireless tether device designed to shut off your boat should you fall overboard. Unlike traditional lanyard kill switches that requires the operator to be tethered to the boat, the AUTOTETHER™ is an unobtrusive wireless receiver that clips right into the emergency stop switch (kill switch). The operator and/or passenger wears a wireless personal sensor that sends radio waves to the receiver. When the sensor is submerged in water, the signal between the receiver and the sensor is instantly broken, because radio waves do not travel through water. AUTOTETHER™ wireless lanyard activates the emergency stop switch which stops the boat’s motor. For added safety, should the operator or a passenger notice a potential danger, he or she can push the red alert button AUTOTETHER™ on the sensor to sound an alarm and stop the boat.