Packaging
Aside from the mouse, one finds a USB Type-A to Type-C charging cable, wireless extender, wireless dongle, sticker, and warranty booklet in the box.
Weight
My scale shows around 59 g (+/- 1 g), which is in line with the "<60 g" weight cited by Alienware. For comparison, the similarly sized and likewise solid-shell Logitech G Pro X Superlight 2 weighs 58 g, whereas the larger Razer Viper V3 Pro weighs 54 g. An excellent weight.
Cable
The Pro Wireless Gaming Mouse comes with a paracord-like, braided charging cable (USB Type-A to Type-C). In terms of flexibility, this one is above average, allowing for playing while charging without feeling restrictive. Its measured length is 2 m, and a ferrite bead is attached.
The charging cable also functions as an extension cable if used in conjunction with the wireless extender, which can be used to keep the distance between dongle and mouse as short as possible. A storage compartment for the dongle is found on the bottom at the rear, though a compartment door is not present. Of note is that the extender, Type-C connector, and dongle in particular get quite warm during use.
Feet
The feet on the Pro Wireless Gaming Mouse are non-dyed pure PTFE (Teflon) feet. They are of average thickness and have slightly rounded edges. Glide is very good. The ring around the sensor ensures CPI stays consistent upon applying vertical pressure.