The unit itself is very easy to get at; you just unvelcro the bottom of the owl and push the switch to change modes. To activate the toy you just press down on the owl's head. You can watch a video of him in action HERE.
Night Night Owl is well made, good looking, and, best of all, he rarely fails to send my baby (4 weeks) off to the land of nod! The combination of the tune and the lights has her fighting to keep her eyes open when tired, and is great at calming her down in general. Definitely a 5 out of 5 for me.
Works even with the light on...
You can pick up your own Night Night Owl for around £20 at Amazon, the Lamaze website, and various other stockists.