Easy To See, Easy To Use/ Enlarged Touch Controls/ Audible And Visual Call Alerts/ Bright Red LED Visual Ringers On The Base Unit And Handsets/ One-Touch Slow Talk Control/ Two Built-In Backup Batteries/ Provide Power For Up To 13 Hours Of Continues Use And Up To 9 Days Standby/ 100-Number Phonebook/ 1.92 GHz - 1.93 GHz Frequency Range/ 60 Channels/ White Finish