EC-389 Personal Data Directory (650-0721) Specifications Faxback Doc. # 39553 Display.......................................Liquid Crystal (Three Lines) Memory Capacity............................................1900 Characters Power Source....................2 AAA Alkaline Batteries (Cat. No. 23-555) Dial Method......................Standard Dual-Tone Multi-Frequency (DTMF) Telephone-Connection Type.........................................Acoustic Dimensions (HWD):............3 1/2 x 2 7/16 x 5/8 Inches (90 x 63 x 16 mm) Weight (Without Batteries):............................About 1.5 oz (45 g) Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.