... Single line speakerphone 2.10/5/3/0 group of guest service keys 3.Message light 4.Matte finish ... 5. Frosted finish surface, The surface of phone and handset is processed by frost, the feel is good, ... easy to clean6. Lengthen Coil cord, bold the handset coil cord, lengthen to 2.5m, to avoid wind ... .7. Volume adjustable, hands-free/ring/handset volume have four levels can adjust.8. Caller ID, ...