Though the C139's design is basic and functional, it does have a bit of style. We like the basic black color scheme and the rounded corners that give it an aerodynamic look. While compact and easily portable (4.0 by 1.8 by 0.9 inches), it also weighs a bit more than we thought (3 ounces), which gives it a solid and comfortable feel in the hand. Other good points include the rubberized sidings that line each spine and the absence of an external antenna.



Link: CNET