Amazon's best Fire TV model gets a promised upgrade that makes screensavers interactive and helps those with hearing aids.

There are now 12 pieces of ‘Interactive Art’ that ... with movement in the space where the TV is, as it tracks motion using a high-fidelity radar sensor built into the unit.

Unlike the other screensavers built into Fire OS, Interactive Art comes to life in response to your movement in front of the Fire TV. According to Amazon, the sensor is able to "turn the big ...

We've seen a few gadgets that turn a user's movement into music, including the Interactive Music Battle ... The first is a disc-like sensor that weighs 9.4 g (0.33 oz) including the battery ...