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

Speech Enhancer Linked
Real Ear Effect
 
Accessories
Acoustic RC App
RC-DEX