System Diagram: components and implementation

Power requirements:

Wall plug on the dock, (rechargeable) battery on the device.

The information requirements:

Wi-Fi, HDMI cord to TV, phone app

Device in the physical space or the human body:

The charging hub would be near the TV. The main component could be anywhere, floor, coffee table...

Interaction affordances:

Power button (push)

Volume knob (turn)

App controller (button pushing, dial sliding/turning)

Motion detection (gesturing, positioning)