LG Optimus MS690 - Manual (Page 106)

- Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
HAC
This phone has been tested and rated for use with hearing aids for
some of the wireless technologies that it uses.
However, there may be some newer wireless technologies used in
this phone that have not been tested yet for use with hearing aids.
It is important to try the different features of this phone thoroughly
and in different locations, using your hearing aid or cochlear implant,
to determine if you hear any interfering noise.
Consult your service provider or the manufacturer of this phone for
information on hearing aid compatibility.
If you have questions about return or exchange policies, consult
your service provider or phone retailer.
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Technical Details