Can you connect it directly to an iPhone? I want to use it as a stand alone unit.

 

You can. Go to bluetooth settings on your iPhone, then hold down the phone button on the 20S for 5 seconds or so until you hear "Phone Pairing" out of the speakers. Should show up on the iPhone at that time - tap on the 20S, on your iPhone screen to pair/connect.

 

Yes you can, same as any other Bluetooth devise