Performance Level
E7 E6 E5 E4 E3 E2
Features                                                          
Processing channels 15 12 10 6 6 4
Hearing programs 5 4 3 3 3 3
Audio Streaming
Ambient Noise Reduction
Acoustic Situation Technology 11 (IE) 7 (IE) 4 3
Impulse Noise Rejection II
Speech Enhancer II/Linked Linked
Real Ear Effect
High Frequency boost
 
Accessories
Acoustic RC App
RC-DEX
TV-PLAY