Discontinued K100

In-car speakerphone with easy controls and option to stream audio through car speakers.

P/N: 83900-01
Product is discontinued

Talk Hands-Free. Drive Hands-On.

Hands-free calling from your car is easy with the Plantronics K100 in-car speakerphone. Its slim profile fits on your car's visor and lets you broadcast calls, driving directions, and music from your smartphone. Dual-mic noise reduction, large speaker, status alerts, and large, easy-to-locate mute, volume and transfer controls all work together to provide clear conversations and an easy calling experience while driving. For more volume or a shared experience with passengers, the FM transmitter lets you hear calls and streaming audio through your car stereo speakers. An in-car charger lets you recharge while driving, making the K100 speakerphone ideal for short or long trips.

Sound Quality
  • Dual microphones and Digital Signal Processing (DSP) focus on your voice and cancel out the noise and conversations around you
  • Echo cancellation improves listening on both sides of the call
  • High-quality speaker ensures every call is heard clearly
  • Large, easy-to-locate buttons let you control the K100 speakerphone while keeping your eyes on the road
  • Dedicated one-touch mute button with indicator light so you know when you're muted – and when you're not
  • Voice alerts keep you informed of the speakerphone's status, including power on/off, connection status, volume and more
  • Easy setup with any Bluetooth® mobile phone gets you up and talking quickly
  • A2DP profile lets you stream music, podcasts, GPS navigation, and more from A2DP-enabled phones
  • Handy in-car charger included so the K100 speakerphone never has to leave the car
  • Slim design with sturdy clip stays securely in place on the visor
  • FM transmitter gives you the option to play conversations and other audio through your car's speakers for greater volume or to share with others
  • Extended battery life delivers up to 15 hours of talk time so you can call with confidence
  • Micro USB connector provides quick, convenient charging


    • CES Innovation Award Honoree 2011
    • CES Innovation Award Honoree 2011
Specifications K100 K100
  K100 K100
Digital Signal Processing Yes
Battery Power up to 17 hours talk time/15 days standby time
Type Bluetooth
Wireless Range 30 feet
A2DP Yes
Microphones Dual-mic
Noise-cancellation DSP
Call Answer/End Yes
Volume +/- Yes
Weight 92 grams

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