The D-Click System is a navigation control system developed by iriver for some of their portable media players.
D-Click features physical buttons that are under a device's screen and hence not visible, thus it involves "clicking" the screen.
[1][2] Effectively, it makes the screen act as a 4-way directional control pad[3] D-Click is used by users on these devices to find music, videos, photos or play games.
The D-Click System is patented by iriver.
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