https://buzztv.com/site/wp-content/u...00-LEFT-02.png
BuzzTV IR-100
https://buzztv.com/site/wp-content/u...L-Right-02.png
BuzzTV IR-100 Luminous
https://buzztv.com/site/wp-content/u...2ndLEFT-02.png
BuzzTV BT-100 BlueTooth or IR control and with or without BackLight
https://buzztv.com/site/wp-content/u...ndRight-02.png
BuzzTV ARQ-100 Air Mouse with a working Keyboard on reverse side
The IR-50 would be the original RCU, which can be easily identified due to it's smaller size.
The newest BuzzTV xrs device now comes supplied with the BT-200 RCU
pictures supplied thnx to buzztv.com