The "MA910SR" is the third edition IEM(In-Ear Monitor) that has been subjected to further sublimation of the brand 1st model "MA910S", which is a product that symbolizes the brand. This brand first model is compatible with the Ricabase that maintains a wide space expression in its class, while maintaining a high level of class and improving the resolution with the high demand of the Recabable. Graphenecoat Dynamic Drivers are equipped with a new passive tweeter RST using unique ceramic audio technology, and combined with TBI Audio Systems LLC's high performance acoustic correction device "HDSS", achieving a wide sound stage that is difficult to use with low distortion and small resin housings. In addition, the MA910SR has been validated with various connectors, and the "Pentaconn ear connector" has been utilized to provide low contact resistance and low loss and reliable contact reliability. It also features an aluminum faceplate to control the vibration of the sound emitted by the dynamic driver. This allows for recable support while maintaining a wide range of sound stages, and delivering higher resolution sound with more information. The earbud comes standard with the original iSep01 earbud tip that reduces the softness of the silicone rubber slightly for a better fit that reduces strain even after long periods of use. All products are assembled in Japan and offer high quality.