New design of rotary jog type Aluminum body rendering solidity image, and vapor deposition on LCD panel surface producing a color point and quality image Enhanced single-hand usability through ergonomic arrangement of the rotary jog and the front keys Size: 23 x 70 x 23 mm Weight: 45g Functions: Voice recording, USB 2.0, automated housework support, playing speed adjustment, section repeating, and FM radio program receiving.