The Otto Engineering V1-10611 Wireless Ear Receiver is an in-ear IFB or Surveillance monitoring earphone that secures in the right ear canal...
99 posted on 09/08/2016 11:45:46 AM PDT by Ol' Dan Tucker
(For 'tis the sport to have the engineer hoist with his own petard., -- Hamlet, Act 3, Scene 4)