Gigaset A400A Duo. Phonebook capacity: 80 entries. Display resolution: 96 x 64 pixels, Display number of colours: Monochrome, Display diagonal: 43.2 mm (1.7 "). Base dimensions: 125 x 36 x 122 mm, Handset dimensions: 48 x 27 x 153 mm. Battery type: AAA, Talk time: 20 h, Standby time: 220 h