I liked the XM1 so much, I 3D printed myself a wireless version using Logitech G305 internals! : r/pcmasterrace
Logitech G305 Lightspeed Wireless Gaming Mouse - Mint - us.MaxGaming.com
Amazon.com: Logitech G PRO Mechanical Gaming Keyboard, Ultra Portable Tenkeyless Design, Detachable Micro USB Cable & G502 Lightspeed Wireless Gaming Mouse with Hero 25K Sensor, PowerPlay Compatible, Black : Video Games