"Buzztv ARQ-100 Version 2 Air Mouse remote is something created to work with buzztv models heartbeat to heartbeat. It has been designed to function properly for all models, starting from 4000 series to 4500, 4900 and Essential E1 and E2 which they just released".
Code:
https://buzztvglobal.com/collections/remotes-keyboards/products/buzztv-arq-100-our-revolutionary-remote-control