TWO headsets, two charging cradles, two AC power adapters


Buy it just for the headsets for use with tons of phones or use with included lot of two APP-51 hook switches; basically the interface box to use seamlessly with the following phones

Polycom IP Phone Compatibility 

  • Polycom SoundPoint IP Models - 320/321, 330/331, 335, 430, 450, 550, 560, 650, 670 (running SIP software 3.0 or later)
  • Polycom VVX 300, 301, 310, 311, 400, 401, 410, 411 (running UC software 4.1.4 or later)
  • Polycom VVX 500, 501 (running UC software 4.0.1 or later)
  • Polycom VVX 600, 601 (running UC software 4.1.2 or later)
  • Polycom VVX 1500 (running UC software 3.0 or later)
  • Polycom VVX 150, 250, 350, 450