Pop Phone Handset for those that like old phones but have new phones

I'm right there with that. I like the new phones but I still want to have the former handset style phone to use. This solves the problem but then it presents a problem when you are out and about. It would be perfect for use at home. And it comes in a wide selection of colors.

Looking for this under my tree...if it would would work with my phone.  There's not much detail about what phone it will work with beyond saying:

for Apple iPhone 4, iPad 2, and Any 3.5 mm Jack of Select Smartphones

 So I do not know if my phone is among those "select smartphones."

http://www.newegg.com/Product/Product.aspx?Item=9SIA09M0600657