Economy class seatback on a Turkish Airlines Boeing 737-800. The screen is showing a flight-safety video. The control panel is on a removable, but cord-tethered, handset, the reverseof which has an alphanumeric keyboard.
<a href="//commons.wikimedia.org/wiki/User:Pigsonthewing" title="User:Pigsonthewing">Andy Mabbett</a>
<span class="int-own-work" lang="en">Own work</span>