Packaging
The Zephyr Pro arrives in a rather unusual box. Essentially, the insides are arranged vertically, and the box is opened at the top. Inside, one finds several stickers, a card which elucidates the brand identity, and a user guide, along with the mouse.
Weight
My scale shows around 74 g (+/- 1 g), which is a decent bit more than the 69 g cited by Marsback. Nevertheless, considering the Zephyr Pro is similar in size to the 68 g Model O, yet features a built-in fan, the 74 g figure is just as respectable. Due to the fan, the Zephyr Pro is slightly more back-heavy than most competing mice.
Cable
The Zephyr Pro features a paracord-like, braided cable. While not quite on the level of the Endgame Gear XM1r or HyperX Pulsefire Haste cables, flexibility is great and roughly on par with the Glorious Model D- or Xtrfy MZ1. Its measured length is 1.80 m. The cable has a gold-plated USB connector and a ferrite bead attached, the latter of which reduces signal noise.
Feet
The feet on the Zephyr Pro are black-dyed PTFE (Teflon) feet. Glide is very good. The ring around the sensor ensures CPI stays consistent upon applying vertical pressure.