Sourcingbay Wireless GSM Desktop Phone with 2G SIM Card Slot - Quadband and SMS Function NOTE: ONLY support 2g network GSM sim card(NOT Included). You may find one from following phone SIM card online carriers: SpeedTalk Mobile, H2O Has a high quality built in speaker and handset. A good wireless phone choice for people who have hearing difficulties. A full sized desktop style phone that makes and receives calls using a GSM SIM card. This GSM phone has all the buttons and features you find on a normal desktop phone 1 Year Warranty.Any question,please feel free to contact us,we will help you solve it in 24 hours