3pk + 2.4 module

Hi C-hing.

Does anyone here use 3pk + 2.4 module here?  I want to know your comments.  I go to kws and try to buy the module and 603 receiver but all out of stock.  Is it because 4pk will replace 3pk soon?

Thanks.

I am using 3pks with 2.4g for long time, its outstanding!!
For newbie, may consider straight forward to pick 4pk 2.4g.
For me, I still have a lot of old stuff of fm and pcm, therefore, a set of 2.4g module is fit for me!!

Thanks all of you.  I try waigo, they have 2.4 module, but no 603 receiver.  The whole kws also out of stock... too bad.

Thanks Kelvin.