What do traffic lights, remote control devices and cell phone displays have in common?

VOA: standard.2009.12.13

There's no way to use Bluetooth to turn the unit on and off, and simple instructions for turning a Bluetooth phone into a remote control are not yet available.

FORBES: BYOB: Build Your Own Bot

And the feature for using the phone as a TV remote control?

NPR: Review: Galaxy S4 Decent, But Filled With Gimmicks

The phone can be a remote control.

FORBES: Winners & Losers In Google TV