Well, I know that - it is printed
on tha Havi box . For those who would like to prolong the life of Havi > use some other ( less expensive/beat up/broken ) plug. Of course you can replug/ recable "anything" - but getting a secure strain relief that will be the equivalent of the original Havi is a bit harder to crack nut. Not aware of any "aftermarket" plug that can accomodate that flat cable really securely for everyday use.
With those "gel" tips (besides being wider bore, known to be beneficial with Havi ), I am interested if these tips somehow do not combine the toughness/repeatability of normal silicone tips and sealing/comfort of foam tips?
http://www.ebay.co.uk/itm/Ear-Bud-Earphone-Headset-Gel-Tips-x-12-Pieces-Large-Various-Colours-/351129328313?pt=LH_DefaultDomain_3&var=&hash=item51c0f05ab9
Here he mentiones
soft foam and
soft gel as the material
?