Packaging
Aside from the mouse, one finds a USB Type-C to Type-A charging cable, wireless dongle, wireless extender, warranty card, quick start guide, set of grip tape, and set of replacement feet in the box.
Weight
My scale shows around 60 g (+/- 1 g), which is slightly less than the weight cited by HyperX for the version in black; the white one weighs 1 g more. Compared to the wired Pulsefire Haste, the Wireless merely weighs 3 g more, which is impressive, and 9 g less than the otherwise comparable Glorious Model O Wireless. An excellent weight and impressive achievement.
Cable
The Pulsefire Haste Wireless comes with a paracord-like, braided USB Type-A to Type-C charging cable. There is no anchor at the mouse-end of the cable, so the cable may come loose during use, though it is unlikely given how tight it sits. In terms of flexibility, this one isn't on the level of the recent ASUS ROG or Glorious charging cables, but significantly better than the Razer charging cables. Accordingly, the Pulsefire Haste Wireless can be used as if it were a wired mouse with barely if any perceivable difference in terms of handling compared to an actually wired mouse. The cable is 1.80 m long.
The charging cable also functions as an extension cable if used in conjunction with the wireless extender. The wireless extender can be used to keep the distance between dongle and mouse as short as possible. A storage compartment for the dongle can be found on the underside of the mouse.
Feet
The feet on the Pulsefire Haste Wireless are white-dyed PTFE (Teflon) feet with slightly rounded edges. They are of above average thickness, and glide is very good. A set of replacement mouse feet is included.