Nokia HS-20 - Manual (Page 4)

Export Controls
This device may contain commodities, technology or software subject to
export laws and regulations from the US and other countries. Diversion
contrary to law is prohibited.
Note: Parts of the headset are magnetic. Metallic materials
may be attracted to the headset. Do not place credit cards or
other magnetic storage media near the headset, because
information stored on them may be erased.
Get started
Insert the headset plug (see part 1 at the start of this guide) into the
headset connector (part 10). Insert the Pop-Port
TM plug (part 11) into the
Pop-Port connector on your compatible phone. The headset is now ready
for use.