Introduction

Established in 2011, Xtrfy is a peripherals company based in Sweden. In terms of internals, the M42 Wireless is virtually identical to the M4 Wireless: PixArt's PAW3370 sensor, Kailh GM 8.0 switches for the main buttons, pure PTFE feet, and a 500 mAh battery allowing for up to 75 hours of battery life. The M42 Wireless is slightly lighter, however, weighing in at 67 g. Likewise, the user once again is given the choice between two differently curved back covers, along with the ability to 3D-print a custom cover. Furthermore, it is again possible to change the internal position of the battery to better adjust the weight distribution to one's liking. As always, no software is needed for the M42 Wireless, which instead can be configured extensively through button combinations, including for its rich RGB lighting. The M42 Wireless is available either in black or white, along with the option to order a custom color scheme.

Specifications

Packaging

Aside from the mouse, one finds a charging cable (USB Type-A to Type-C), wireless extender, wireless dongle, additional back cover, magnetic screwdriver, sticker, quick start guide, two keycaps, and a set of replacement feet inside the box.

The back cover can be used to adjust the hump curvature:

Unlike on the M42, the back cover doesn't attach magnetically, and is screwed in with three screws at the bottom instead.