Remote shutter release for EM-5?

Hello,

this is the cheapest I have found:

Aputure Pro Coworker 3L

I have ordered it for 20€ and I expect to get it in few days, from what I have seen it does the job but you have to take care for the battery drain in the transmitter (I think I will put the battery off when not in use). The receiver works as wired remote even without batteries.

I will let you know how it works, if you are interested.

Ciao