@bella_ss Thank you for your comment Sheralee, its a MIOPS Splash kit, I tried to buy other units in the past but because of the timing trigger in on Sony cameras they would not work, this MIOPS unit is triggered via an app on a mobile phone to fire the splash unit with a lead from the unit to your camera, that fires the camera and you flash automatically, all you have to do is set the drop sizes trigger timing and delay time, sounds complicated but isn't, its like cheating see attached link there are also tutorials on you tube using the MIOPs unit, if you need more info let me know https://www.miops.com/products/splash-water-drop-kit