KX-TS400SX

  • Redial Memory (Last Number)
  • Wall Mountable
  • Switchable Tone/Pulse Setting
  • 3-Step Ringer Volume (Off, Low, High)

KX-TS500MX

  • Redial Memory (Last Number)
  • Electronic Handset Volume Control (4-Step)
  • Wall Mountable
  • Timed Flash(600ms)
  • Switchable Tone/Pulse Setting
  • 3-Step Ringer Volume (Off, Low, High)