I was going to get to that part but you got it right. The Esteem is indeed a revolutionary product. No microphone at all with this device. In fact, it's incorrect to call it a hearing aid because this one here has no microphone. I'ts an implantable hearing device.
WOW.
It's cool to talk about stem cells curing hearing loss. But, what about a Totally Implantable cochlear implant with laser 240 electrodes?
Check out this crazy article...
Air travel
The speech processor
must be switched off
during take off and landing while the plane
has the ‘Fasten Seatbelts’ sign illuminated.
This is because it emits a signal
which can
cause temporary interference with the
pilot’s equipment. 
Thunderstorms
All metal objects should be removed if
out in a thunderstorm therefore if a
cochlear implant user is outside during
a thunderstorm
they should remove the
external parts of the implant system
because it contains metal parts.
Vigorous sports (e.g. football, netball,
hockey and squash)
It may be advisable to remove the external
parts of the system. If there is some risk of
blows to the head the external parts should
be removed
Gymnastics
Gymnastics should be undertaken with
caution. A scrum cap will provide some
protection.
Once again the external parts of
the implant system should be removed.
Swimming, shallow diving,
snorkelling, scuba diving and most
water sports
Most water sports should cause no
problems
as long as the external parts of the
implant system are removed.
Activity park rides, bungee jumps,
artificial ski slopes, etc
It is not known if there are any extra risks
for cochlear implant users associated with
these activities, but they are certainly not
advisable in the first 6 weeks after surgery.
If cochlear implant users do decide to
undertake them,
they should remove the
external equipment to prevent it from flying
off.
Treadmills in gyms
Check that the equipment is properly
earthed or you may receive a static electric
shock (see following section).
It is
advisable to remove the external
equipment.
Plastic gym mats
The external equipment should be removed
to protect it and avoid damage from static
electricity
Sun beds
Using sun beds cannot damage the internal
components of your implant,
but the
external equipment should be removed to
protect it from perspiration.
Damage to external equipment.
Remember
at all times to keep all the
cochlear implant equipment dry and free of
sand and dust.
Gamma cameras
External equipment must be removed.
Welding
Arc and MIG welding do not pose a threat
to the implant but the user may hear
interference.
Ideally the external parts
should be removed to protect them from
sparks, but the user needs to weigh up the
relative risk of not being able to hear.
Car repairs
If working on a running car engine, normal
safety procedures should be followed
and
the external equipment should be removed.
Children’s play equipment and toys
•
The speech processor and headset
should be removed (not just switched
off) before playing on any plastic
equipment eg plastic slides, crawl
tunnels, ball pools, bouncy castles.
• Implant users should not play with
static generating toys eg plasma balls,
plasma plate.
RECOMMENDED GUIDELINES ON SAFETY
FOR COCHLEAR IMPLANT USERS
