(1) Except as otherwise specifically provided in this chapter,
any person who intentionally - 
    (a) sends through the mail, or sends or carries in interstate
  or foreign commerce, any electronic, mechanical, or other device,
  knowing or having reason to know that the design of such device
  renders it primarily useful for the purpose of the surreptitious
  interception of wire, oral, or electronic communications;
    (b) manufactures, assembles, possesses, or sells any
  electronic, mechanical, or other device, knowing or having reason
  to know that the design of such device renders it primarily
  useful for the purpose of the surreptitious interception of wire,
  oral, or electronic communications, and that such device or any
  component thereof has been or will be sent through the mail or
  transported in interstate or foreign commerce; or
    (c) places in any newspaper, magazine, handbill, or other
  publication or disseminates by electronic means any advertisement
  of - 
      (i) any electronic, mechanical, or other device knowing or
    having reason to know that the design of such device renders it
    primarily useful for the purpose of the surreptitious
    interception of wire, oral, or electronic communications; or
      (ii) any other electronic, mechanical, or other device, where
    such advertisement promotes the use of such device for the
    purpose of the surreptitious interception of wire, oral, or
    electronic communications,

  knowing the content of the advertisement and knowing or having
  reason to know that such advertisement will be sent through the
  mail or transported in interstate or foreign commerce,

shall be fined under this title or imprisoned not more than five
years, or both.
  (2) It shall not be unlawful under this section for - 
    (a) a provider of wire or electronic communication service or
  an officer, agent, or employee of, or a person under contract
  with, such a provider, in the normal course of the business of
  providing that wire or electronic communication service, or
    (b) an officer, agent, or employee of, or a person under
  contract with, the United States, a State, or a political
  subdivision thereof, in the normal course of the activities of
  the United States, a State, or a political subdivision thereof,

to send through the mail, send or carry in interstate or foreign
commerce, or manufacture, assemble, possess, or sell any
electronic, mechanical, or other device knowing or having reason to
know that the design of such device renders it primarily useful for
the purpose of the surreptitious interception of wire, oral, or
electronic communications.
  (3) It shall not be unlawful under this section to advertise for
sale a device described in subsection (1) of this section if the
advertisement is mailed, sent, or carried in interstate or foreign
commerce solely to a domestic provider of wire or electronic
communication service or to an agency of the United States, a
State, or a political subdivision thereof which is duly authorized
to use such device.