1828, Charles James B. Williams, A Rational Exposition of the Physical Signs of the Diseases of the Lungs and Pleura; Illustrating their Pathology, and Facilitating their Diagnosis[1], →ISBN, page 64:
Occasionally, however, at this period of the catarrh a ticking sound is heard, like that produced by the click wheel of a small clock.
2004, Aya Brokering-Iwata (translator), Yasukuni Notomi (author), iPod Fan Book: go everywhere with iPod[3], →ISBN, page 42:
If you have a new fourth-generation Click Wheel iPod, you can even make multiple On-The-Go Playlists.
2005, Bob Morris, Jamaica Me Dead[4], →ISBN, page 278:
I could see a steel vault sitting inside the hidey-hole. The original click-wheel lock was gone. In its place was a heavy-duty padlock.
2005, Brian Tiemann, iPod iTunes for Windows and Mac in a Snap[5], →ISBN, page 6:
4G—Fourth-generation iPod. Dock connector on the bottom. Integrated “click wheel” interface with the four control buttons embedded under the directional points of the touch-sensitive navigation wheel. 20GB or 40GB capacity.
2006, Scott Sigler, Earthcore[6], →ISBN, page 36:
The [sic] thumbed the iPod's click-wheel until the display read “The Donnas – Take Me to the Backseat.
