We have wireless trigger setup for our strobes .. it is NOT your $300 "pocket wizard" .. but I also don't need to be 300yds away .. we're right beside the strobes .. Anyway .. when we purchased it it worked perfectly .. the batteries wore down and it started triggering the strobes randomly .. I replaced the batteries and we have moved a little bit of a different placement but even with the new batteries (energizer rechargables) in the master and slave units ..it still sets off the slave randomly .. Is this a problem with interfering frequencies ..wifi.. cordless phones .. etc. ? or possibly something else .. Any experience or input greatly appreciated thanks in advance ..