This little clip-on microphone is designed for all the sound field with an acceptable quality for a product as small, discreet and independent. The preamp is located in the small box on the wire. It can be a plug-Md tt simple like mine (Sony MZ-510) without needing a microphone. It plugs into the optical input and hop, it's gone.

OVERALL OPINION

Recently but already fully satisfied for the taking of environments (street, underground campaign) and price (about € 30 including delivery on the web).
Note that the preamp is independent of the micro, we can certainly use another mic preamp with ... tested.