Item # HA10110
Allows connection of a Plantronics wired headset to phones that don't have a headset port
Adjustments for hearing volume, speaking volume, mute and switching from handset to headset
Uses AA batteries, included, to power the unit
Multiple settings for compatibility to a wide variety of phone makes and models
2 year Headset Advisor advance replacement warranty, 1 year on refurbished models. Also includes free lifetime product support
The Plantronics M22 amplifier base is a durable and very reliable headset amplifier base designed for use with Plantronics H series headset tops. Not all phones have a headset port so the M22 allows use of a wired headset for those models that don't have this port. The short coil connector cord plugs into the handset port of the phone and the headset top into the longer coil cord with quick disconnect. Having the quick disconnect feature allows you to simply plug in to use the headset and if you need to step away while on a call, simply unplug. Your call isn't dropped and when you reconnect, you're back on the call. The M22 has several helpful adjustments. You can adjust the hearing volume as well as the volume of your voice to your callers. You can mute the microphone when needed but when doing so, you can still hear the caller. There are several compatibility adjustments which allows the M22 to work with 98 percent of all office desk phones. The M22 is powered by two double A batteries which are included and last a long time before needing replacement. New amplifiers come with a Headset Advisor advance replacement warranty while our highly popular refurbished models come with a 1 year. Both include free lifetime product support for longer peace of mind and no confusion who to call when you need help.