The KOSO RX-4 is a plug-and-play TFT multifunction meter designed specifically for the Yamaha MT-07, MT-09, XRS 700, and XRS 900. The unit integrates a speedometer, tachometer, odometer, tripmeter, hour meter, voltage display, clock, and stopwatch into a single modern interface. It also includes six indicator lights and additional functional features to provide comprehensive vehicle data. Installation compatibility varies by model, with the MT-07 requiring no additional hardware. The MT-09, XRS 700, and XRS 900 require an additional bracket for proper mounting, which is not included in the standard configuration for those specific applications.