EATON Buzzer mod

For my photobooth business I build a radio buzzer which will used to start the counter of my photobooth. I used an original buzzer from EATON and changed the lower housing. I added a batterie box and enough space for a PocketWizard PlusX electronic board.
If you are wondering about the blue tape which sticks at the bottom of the housing. My bed is little bit too narrow to the nozzle.

Of course, I could construct the whole buzzer but I had one in my cellar since ages, before I bought a 3D printer. The next one will be of course a complete construction.

Parts list:
Buzzer: https://www.amazon.de/FUß-GROBHANDTASTER-1S1Ö-FAK-R-KC11/dp/B0014DQI5S/ref=sr_1_1?ie=UTF8&qid=1491981036&sr=8-1&keywords=eaton+buzzer
Batterie holder: https://www.amazon.de/gp/product/B000PEJQOW/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Switch: https://www.amazon.de/gp/product/B00IKDQ0SK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
PocketWizard PlusX: https://www.amazon.de/PocketWizard-Plus-X-Transceiver-43