Updates for the pei tel Product Catalogue

Date	Product Sheet	Status
05/09/2012	Desktop system PS20 USB eL	added new
04/13/2012	Gooseneck microphone ME151	updatedFixed: Wrong product characteristics
04/10/2012	Handset HA57	added new
04/10/2012	Loudspeaker KL1 Amplified	added new
04/10/2012	System EAAB	added new
01/03/2012	Desktop System PS12 USB (black)	added new
05/17/2011	Microphone head ME510	added new
04/26/2011	Acoustic tube earphone SSH2	added new