Innovative 8 Multimedia Keys – HS611 is the first pen tablet equipped with multimedia keys, the 8 multimedia keys are ergonomically designed on the upper side of the pen tablet, which helps to maximize productivity. Features included: volume mute/down/up, previous play/pause/next, switch between softwares/switch to the desktop.

https://www.amazon.com/Graphics-Supported-Function-Battery-Free-Multimedia/dp/B082MX126F