I've seen it..it looks like a small airbag installed on/under the keybed with a wire attached to the back of the Key Cover, and it is adjustable. You do not see the wire. I did not take a look at the installation of it when I saw it. I CAN tell you it works. I'll be down that way on Thursday, and I'll "ink in" a visit to QRS and report back. Your faithful servant, -Phil Bondi (Fl.) tito@philbondi.com
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