Gear4 UnityRemote User Manual page 6

■ UnityRemote's status LED will slowly blink to indicate it is in pairing
mode. If the LED does not blink, press the button for half a second to
switch UnityRemote off. Then press and hold the button until the solid
light turns into a blinking light.
■ On your iPhone, iPod touch or iPad, open the Settings panel. Tap on
General > Bluetooth.
■ Ensure that Bluetooth is turned on and after a few seconds
UnityRemote will appear in the list of devices (on some versions
User Manual | UnityRemote | GEAR4 5