It can Edit 9 one Touch Memory Speed Dialing and Images, Elderly Image Phone, Phone for Patients with Alzheimer's Disease and Enlarged Phone for Patients with Hearing ImpairmentBrand: VDTG Color: White Features: "When saving a number, the keys do not play a signal tone, but this is a behavior that can be stored, not a behavior where the keys do not work.". The volume of electronic ringtone and handle can be adjusted. The size setting of the top ringtone can be adjusted. Different volume can be used in different occasions. The sound of the handle can be adjusted to select the appropriate comfortable volume The hands free