Plantronics Practica S50 Headset

Note that this is NOT a headset for a cordless phone, but for your typical office phone.

Here's a website that sells it.

http://www.headsetzone.com/s50.html

And here's a link to a product sheet:

http://www.kontel.pl/plantronics/ulotki1/T50-S50_ProdSheet.pdf

Willing to consider best offer.