Have recently purchased two cordless telephones, as my old MICRO 3000 have given up the ghost. My choice was the Gigaset E310H. It has the same usage characteristics as my old equipment and now even a speakerphone. Moreover, now standard commercial batteries (AAA) included what increasingly turned to the old devices as a problem out because they were nickel-metal hydride batteries (flat battery). These were made specific Recipes for these models and each had to be ordered separately. Today I can not say anything yet about the longevity, but am hopeful.