2.4G ISM band (2,400 to 2,483MHz), suiting to Europe, the US and Japan Phone's 64-foot(20-meter) radio range Fashion look and human design Commercial grade high quality speakerphone with noise reduction and digital echo cancellation Large graphic LCD with blue color backlight Multilanguage caller ID display feature Reviewing Skype contacts and call list on handset LCD screen Both base and handset ringing for all incoming calls Auto-selecting RF channel for improved quality of voice USB 2.0 and USB 1.1 compatible Built-in driver and sound card