We have been using this model for over 5 years and it has always worked very well. The sound we hear is clear and the people we are calling can also hear us. In fact, the phone can be placed quite far from the base and still connect. We've moved it to other rooms outside of the base, and it's still working fine. The wireless aspect is why we went with it and that part is a huge convenience. No annoying cables. Just grab the device and place it where you want. Battery life is very good - not even an issue once you know how to return it to the base. Does the job well.
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