I based my purchase on a Which report's praise for the clarity of sound, particularly on speakerphone. It is sharp and adjustable for volume but the downside is that on speakerphone there is often a marked metallic sound or interference when one speaks or moves papers close to the phone. This is the reason I did not give it 5 stars since otherwise it is excellent. Lue Lisää Translate to suomi
4000-sarjan ylivoimainen äänenlaatu vie sinut lähemmäs rakkaitasi, kun ette voi olla yhdessä. Langattomia Philips-puhelimia on helppo käyttää.