Possible conflict  
with glasses or
oxygen tubes
Cosmetic appeal
Slightly
chance of
feedback
than full
shell
Partial Wind shield
Wireless
BTE Behind-the-ear/Open ear
Memory buttons
Directionality
Volume control
Volume control
Directionality
Memory buttons
No Wind shield
Partial Wind shield
Partial Wind shield
Possible conflict  
with glasses or
oxygen tubes
Natural Directionality
Non-Directionality
Longest battery life
Little space
Fits most hearing loss
Cosmetic appeal
Low possibility of feedback
Memory buttons
Memory buttons
Volume control
Best for longevity
Susceptible to wax
Good longevity, less repairs
Small battery
Best for Power-severe hearing loss
Space for component
Large battery
Directionality
Canal
Disadvantages
Good longevity, less repairs
Advantages
No Wind shield
susceptible to (wax)
RIC Receiver in the Canal
Full Shell
CIC Completely-in-Canal
Possible occlusion
SIEMENS
Susceptible to
fluid drainage
Susceptible to
fluid drainage
Susceptible to
fluid drainage