Performance Level
E7 E6 E5 E4 E3 E2 E1
Features                                                                        
Processing channels 15 12 10 6 6 4  4
Hearing programs 5 4 3 3 3 3  3
Ambient Noise Reduction II  
Acoustic Situation Technology 11 (IE) 7 (IE) 4 3  
Impulse Noise Rejection II

 
Speech Enhancer II/Linked Linked  
High Frequency boost  
   
Accessories
Acoustic RC App  
RC-DEX