CTL's latest product are matching peripherals specifically designed for use with the education- or enterprise-focused light PCs for which the OEM might be best known. To this end, the new wireless mouse and keyboard have the Made for Chromebook certification. They also connect using up-to-date Bluetooth specs and can last for over 2 years on their batteries.
https://www.notebookcheck.net/CTL-announces-a-new-wireless-keyboard-and-mouse-custom-designed-for-its-Chromebooks.610248.0.html