This accessory is compatible with :

iphone 3G / ipod touch second generation ( you need to download software and install it onto your device, iTalk Recorder or simple image recorders)

4G / ipod Classoc 120G version of the iPod nano (you can use the pre-installed software recording)

Features:

* Plug and Play

* High -quality microphone, high sensitivity

* Miniaturization and portability

* No batteries