Provider of fm systems, assistive listening devices, translation equipment, tv listeners, transmitters, receivers, amplifiers, headsets, wireless microphones General (Generous) Technologies Thanks for wandering into our website. We can sum up GT's operation as follows: Expert Advice -- F A S T Service -- Low Prices General Techologies Prices: We offer discount assistive listening devices (ALDs) below the price at which they are commonly sold, not just below the suggested retail price. This makes us fairly unique in the civilized world and we have a 45-Day Price Refund.