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Official Description

Type on your iPhone, iPad or Apple TV using your Mac's keyboard.
Turn your Mac into a Bluetooth keyboard that works with all of your devices.

Use keyboard shortcuts to start typing on devices.
Copy-paste text into your device.
Minimal menubar app that stays out of sight until you need it.

– Text much faster on your iPhone
– Easily edit long documents on your iPad
– Remote control your Apple TV
– Control your 2nd laptop/desktop
– Remote control your iPod playback connected to stereo.