[Help] Trying to find a speaker kit that can be soldered for my design project

For my design project in class, I’m creating a speaker, but we have to supply all the parts.

I was wondering if anyone can help me with doing this. I need a speaker, that connects to all the circuitry (I can solder anything of necessary), and then connects to an iPhone plug.

Edit: Also, the speaker radius has to be no more than 7cm :)

I’m not really looking for sound quality or volume or anything, as it doesn’t really matter - I just need to find a speaker kit.

Also, I’ve found kits online but they don’t seem to connect to anything, they just have the circuit board connected to a speaker and a strange black box with two gold circles on? Perhaps this is actually what I’m looking for, but I just don’t know.

Thanks for any help, sorry I’m dumb hehe.

Great design resource

100 Things Every Designer Needs to Know About People (Voices That Matter) Submitted January 09, 2019 at 04:50PM by Tintons http://bit.ly/2C9lunl