The Harmony is a behind-the-ear (BTE) device with a BTE speechprocessor, a battery-compartment and a coil with magnet. Available in 3 colours (click here for colour palette).
The battery-compartment consists of 1 large (Powercel Plus) or 1 small (Powercel Slim) rechargeable battery with a working autonomy of 21 hours, resp. 12 hours.
The Powercel can be detached from the BTE device and connected to the BTE with a long cable. The Powercel can then be clipped to the clothing ("body-worn").
Alternatively, the battery compartment can be replaced by a connector with a body-worn battery box for one AA battery("powerpak").