to see if your headphones qualify for a rebate. They ask you to mail in your old headphones in exchange for the rebate amount. The old headphones can be used, broken, and cheap.

For example, if you recently purchased a Sennheiser CX300-B or Sennheiser CX300-S deals at $30 last week, you qualify for a $15 mail-in rebate by mailing the form along with an old set of headphones. So after the rebate, those deals become $15 after rebate for very nice set of in-ear headphones. Full Deal…