Antennas; Temperature sensors; Electronic testing equipment, namely, telecommunication line integrity testing apparatus; Laser speed detectors; Smoke alarms

Anti-Tension Assistance Device Consisting of a Dual Earphone Assembly and a Headband, the Headband Having Electronic Means for Sensing Activity Level in the Frontalis Muscles and for Generating a Tone Proportional to the Activity Level which Tone Is Communicated to the Wearer of the Headband of the Device Through the Earphones