Wikia

Trap Launcher
Trap Launcher 1.5 sec cooldown Instant cast While active, your Traps are launched to a target location within 40 yards. Lasts until cancelled.
Usable by
Class	Hunter
Properties
Type	Utility
School	Physical
Cooldown	1.5 sec
Level required	48
Related buff
Trap Launcher While active, your Traps are launched to a target location within 40 yards.

Trap Launcher is a hunter ability learned at level 48, used to launch and set a hunter's traps from a distance.

Notes

A hunter can activate this ability, but hold off on using it until ready to launch the trap.
Activating the ability does not break [Shadowmeld] (night elves), but launching the traps does.