The specific device is the Goldtouch Go!2 Bluetooth Wireless Mobile Keyboard (GTP-0044W).
https://shop.goldtouch.com/products/goldtouch-go2-wireless-bluetooth-mobile-keyboard-pc-mac?source_app=embed&referer=http%3A%2F%2Fwww.goldtouch.com%2Fergonomic-keyboards%2F


My laptop is a Pixelbook.

Platform
11021.56.0 (Official Build) stable-channel eve
Firmware
Google_Eve.9584.160.0
Channel
Currently on stable
ARC Version
5081697
Blink
537.36 (@22757df8a5ddfacf2eaf57b85f4ea54c14b8f87a)
V8
7.0.276.31
User Agent
Mozilla/5.0 (X11; CrOS x86_64 11021.56.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.76 Safari/537.36