Feature: 1. 2G Quad Band: Our big button senior phone supports 2G GSM quad band 850, 900, 1800, 1900 and dual SIM cards to ensure 2G net compatibility. Speaker: The big button senior phone uses stereo surround speakers and a noise canceling microphone to achieve a thick and comprehensive sound quality with good sound quality so that every subtle toning can also be rendered.
eBay