Why You Need The DPA FAADPA2B d:facto II Handheld Preamplifier:

This handle can be used with either the d:facto™ Vocal Microphone or the d:facto™ Interview Microphone. And, if you decide to go wireless, you can just switch to an adapter for wireless systems at a quarter of the cost of a new d:facto™ microphone.

The modular nature of the d:facto™ series allows you to replace both the capsule as well as the adapter.