From: utzoo!decvax!harpo!ihps3!ihldt!ihtnt!niel
Newsgroups: net.cycle
Title: Re: headphones and helmets
Article-I.D.: ihtnt.150
Posted: Fri Sep  3 12:12:02 1982
Received: Sun Sep  5 03:31:44 1982
References: cbosgd.2585

A number of companies sell headphones which can be mounted
in helmets.  Some will simply sell you parts while others
want you to send your helmet for their installation.  Often
the installation requires cutting away some of the liner
which might slightly distract from the safety and comfort
of the helmet.  Most use adhesive backed speakers though I
have heard of one which requires drilling holes in the helmet
(which probably reduces safety considerably).

These are very special, ultra thin speakers.  I suspect Walkman
headphone speakers would be too thick for this application.

What I use is a special liner/speaker combination make by Nava
for use in their helmets only.  As the liner is thicker than
the regular liner, it is harder to hear street noises even when
the thing's turned off.

As for legality, that varies from state to state.  They're illegal
in Illinois (except for the police).

				ihtnt!niel