Cochlear Nucleus 7 - Operating characteristics; Processing unit

72 NUCLEUS 7 SOUND PROCESSOR USER GUIDE
Other information
Physical configuration
The processing unit comprises:
• Two omni-directional microphones for receiving sound.
• An internal telecoil for receiving magnetic fields radiated
by neck loops and room loops.
• Custom analogue and digital integrated circuits with
digital signal processing (DSP) and bidirectional wireless
communication capabilities.
• A tri-colour visual indication of processor function or
problem.
• Control button allowing user control of key features.
• Custom 4-pin connector for coil cable.
• A range of earhooks and specialised retention options.
The batteries provide power to the processor. The coil acts as
a transformer coupling that transfers energy and data to the
implant.