The United States and COMFEE are both brands of the United States Group, in order to meet the needs of different users, the use of different design teams, COMFEE has the United States of America's global R & D background, the domestic after-sales system is consistent, quality and service is equally reliable. Different from the United States is COMFEE for the younger generation around the world, overseas to build a global R & D network in 20 countries and regions