Eurolite AKKU QuickDMX Wireless Receiv.

Works great. The recessed power button is a bit wierd in that you need a pointy object (not included) to push it. But at the same time it protects is from being accidentally pushed. There is a (not measured) ~tenth second delay between the transmitter and receiver, which I expected. So if you light show would be ruined by that, think twice. In my case, having all the light fixtures on their individual receivers, they all suffer the same delay. And that works for my show.