This is the Yamaha EAD10 Electronic Acoustic Drum System, used for mic and trigger application both live and in recording uses. Here is a quote from Modern Drummer Magazine:

 “ Since its debut in 2018, the EAD10 Drum Module has made waves in the drumming world for its ease of use as a simple drum miking system with triggering capabilities. One of the more prominent examples of the EAD10 in action is by the popular YouTuber Jorge Garrido, known as El Estepario. Jorge has been creating drum video content with the Yamaha EAD10 since 2018, amassing millions of followers on social media.” 

In conjunction with Yamaha’s Rec’n’Share application, drummers have ease of uploading content. It accepts triggers for extra input. There are many videos on YouTube to demonstrate its uses. 

I’ve used this the last several years for mic’ing a kit in small venues and some home recording. Always well kept in top shape as seen in photos. Comes with all original accessories and box.  The “combined” stereo  cables that connect the sensor has a small area that separated but of course this does not affect the performance. Feel free to ask any questions. Thanks!