If you are looking for an advanced Remote Controller for QLab and GObutton and don’t want to spend a lot?
Then Check out this DIY BOX

EASY SET-UP
PLUG & PLAY DIY BOX
The functionality goes up to:
- On-Board Buttons for GO, STOP, Prev CUE, Next CUE, Volume Up/Down.
- Very reliable Wireless Remote Control
- Built in USB-Audio Interface (Stereo Line-Level Output at 16bit 44,1kHz.
- Built in USB to/from Serial MIDI Interface
- Second Midi output to control a Backup Machine
- Change between different function modes for Midi output and Buttons
- Works with OSX and iOS without any driver. Plug n Play!