Designed to work with Skype® (a free downloadable software that allows users to place internet calls for free to anyone in the world), this handset allows you to control the program’s most commonly used features all from the unit itself. With advanced features like echo-cancellation and built-in volume controls, your calls remain crystal clear. The Internet Phone is also compatible with today’s most popular messaging softwares that support voice call capabilities, including AIM®, iChat®, Yahoo! Messenger®, and Google TalkTM. Additionally, the phone can also double as a separate microphone and speaker unit for recording audio content and listening to music. With the Hawking Net-TalkTM Internet Phone, your calls are now clear and free*!