Black single line phone one touch eco modeany key answer call restriction time alarm supports caller ID 50 caller id memories 50 number phone book nuisance block 30 numbersblock withheld number call 1.6 inch monochrome LCD screen amber back light speaker phone12 ringer melodylast 10 numbers redial mute function recall function key locktalk time 16 hours 2 x AAA rechargeable batteries Base 107 x 96 x 77 mm and 100 grams weight Handset 164 x 47 x 30 mm and 130 grams with battery weight