Caller ID Phone with 110 to 240V AC Voltage and 50 to 60Hz Frequency, Measuring 300 x 63mm

Desktop Conference Phone with 80dB Speaker Volume and 20 to 85% RH Humidity Range

USB Personal Speakerphone, Connectible to VoIP Soft Phones and Internet Telephones Such as Skype

VoIP Phone with 100 to 240V Power Adapter, Supports SIP Protocol and Automatic Provision