This is a PC gamepad built into the bottom of a mouse, called the Shogun Bros. Chameleon X-1, a 5-stage adjustable 1600dpi optical sensor with 125Hz polling rate…And is PC Only…See Details.

@TatWza

It connects to your Windows PC over a USB dongle sporting 2.4GHz wireless. There’s 14 buttons on the bottom, 7 on the top, and the company’s support page suggests the device has force feedback as well. It has the “sophisticed Norway Nordic Chip System”.