The Yealink W52H is a VoIP DECT cordless handset that can be paired with a Yealink W52P DECT base station. Up to 4 additional W52H handsets can be paired with one base giving increased mobility and freedom to users. The Yealink W52H handset when paired with a Yealink W52P base gives users increased mobility and flexibility when it comes to making calls. Four W52H handsets can be paired with each base allowing for five different users and 4 simultaneous calls. The Yealink W52H handset features a 1.8? color display with an intuitive user interface. They also support HD voice and feature an integrated full duplex speakerphone.