Hello there,
Got this product from the seller directly. As he gently asked me to leave some feedback as he started out on Amazon I said sure because I really like the product:
I travel a lot inbetween Canada and the states and used to constantly have 2 phones with me. And I lost quite a few sim cards.
Well, thanks to this Hypercard 3G product those times are over!
Now I have a Canadian and a US simcard in my Samsung Galaxy phone and when I travel I just switch to the other sim within seconds. You can do it by menu or shortcut
I cut my sims with a pair of scissors which was fine for me, as the manual that comes with the card is well explained. You have to make sure though that both sim cards you want to use do work seperately in your phone first.
So if you are tied to a provider and he simlocks or netlocks your phone, talk to them first if you want to combine several different providers or make sure you get an unlocked phone.
I also use this card when I travel and need a data connection. It is much cheaper to buy a local prepaid sim card from the country you are in with a data plan than paying ridiculous data roaming charges..
I have had a bad experience with a cheap dualsim card from China years ago, this just does not compare. THis product here is not from China and I think engineered in Germany, and you can tell: 3G is supported, sim switch is easy and the battery is not affected either. I can highly recommend the product!
Hypercard 3G Digital Dualsim Adapter 3G