• Serene Innovations In-Line Amplifier
Serene Innovations

Serene UA50 In-Line Phone Amplifier

Amplify your business phone or headset for loud, clear office calls.

  • The only universal amplifier that works with both handset and headset.
  • Increases incoming voice up to 45 dB without static or distortion.
  • Compatible with virtually all modular corded phones and external headsets.
  • Digital Sound Processing and Tone Enhancement for speech clarity.
  • Automatic Gain Control optimizes volume level.
ID: UA-50 or UA-4020


This product works with:

Serene UA50HS Head Set for UA50 Amplifier