Impedance matching plays a crucial role in microwave circuits, particularly for loads like microwave plasma, which tend to experience impedance fluctuations. Continuous impedance matching becomes essential in such cases. To address this, we have successfully developed an automatic matching device (auto-tuner) that is compact, cost-effective, and capable of achieving rapid matching. Additionally, we have also created a manual matching device that is low-cost, compact, and lightweight, utilizing the same operating principle. These products have gained significant acclaim for their user-friendly nature. They find application not only in plasma generation circuits but also in a wide range of microwave circuits. We eagerly invite companies interested in adopting and leveraging these products for business development opportunities.