Packaging
Aside from the mouse, one finds a USB Type-A to Type-C charging cable, USB Type-A to Type-C extension cable (not pictured), wireless dongle, quick start guide, sticker, and set of replacement mouse feet in the box.
Weight
My scale shows around 54 g (+/- 1 g), which is slightly less than the weight cited by CHERRY XTRFY. This matches the weight of the LAMZU Thorn, which is similarly-sized and likewise utilizes a solid shell, but resorts to an open-bottom design, unlike the M64 Pro. An excellent weight.
Cable
The M64 Pro comes with a paracord-like, braided charging cable (USB Type-A to Type-C). In terms of flexibility, this one is slightly above average, allowing playing while charging without feeling overly restricted. Its measured length is 1.80 m, and a ferrite bead is attached.
In addition to the charging cable, the M64 Pro also comes with an extension cable specifically for the wireless dongle, whose stronger shielding ensures signal integrity at the available polling rates of 4000 and 8000 Hz in particular. The measured length of this cable is 1 m.
Feet
The feet on the M64 Pro are white-dyed pure PTFE (Teflon) feet with slightly rounded edges. Glide is very good and thickness average. By default, the sensor ring is unpopulated, but a suitable skate is part of the set of replacement feet included with the box and may be installed manually if so desired.