The ornamental design for a keychaindevice, as shown and described.
FIG. 1 is a perspective view of a keychain device showing our new design thereof;
FIG. 2 is a front view of the keychain device shown in FIG. 1;
FIG. 3 is a back view of the keychain device shown in FIG. 1;
FIG. 4 is a top view of the keychain device shown in FIG. 1;
FIG. 5 is a bottom view of the keychain device shown in FIG. 1;
FIG. 6 is a first side view of the keychain device shown in FIG. 1; and,
FIG. 7 is a second side view of the keychain device shown in FIG. 1.
The keyring and chain shown in broken lines show environment and all remaining broken lines show portions of the keychain device. All broken lines form no part of the claimed design.