This Plantronics Practica S50 Telephone System Headset Hands-Free 2001 Sealed in Box in new in box. 

Details:
  • Easy-on, easy-off
  • Over the ear headset
  • Clear sound quality
  • Universal amplifier connects to your single or multi-line telephone
  • 2 AA batteries required
  • Enjoy hands-free conversations
  • Ergonomically designed for comfort
  • Volume control and mute capabilities
  • Select handset or headset function
  • Not for use with dial-in handset phones
  • Not hearing-aid compatible