The Opus 2 is a behind-the-ear (BTE) device with a BTE processor, a battery-compartment and a coil with magnet. Available in various colours (click here for colour palette).
The battery-compartment contains 1 rechargeable battery with 16 hours autonomy or 3 disposable batteries (675 Extra of 675 C) with 5 days autonomy. A smaller compartment (XS) is available for 2 disposable batteries and 3-4 days autonomy.
Children can wear the battery on the body. Only the tiny processor itself remains on the ear. This configuration requires the following parts...