This application is a software dedicated to the performance and function adjustment of Bluetooth or USB devices produced by the TANCHJIM brand. Currently, you can adjust the operation of your TANCHJIM brand earphones in the application, making it easier for you to use them. At the same time, TANCHJIMs preset tuning function is available online, allowing you to change the sound of the headset at any time. The upcoming PEQ function will greatly expand playability.