Project Echo Dirge

This weapon straps to the wielder's arm and has several buttons and a multitude of small speakers lining the top.   When used to as a weapon, it acts as a +1 Limning Revolver.   In addition, Project Echo Dirge can be used once per day to emit a brain altering song for 1 minute. During this time, the user is treated as having Hide in Plain Sight, as the Ranger ability, except that it can be used in any terrain. This effect is considered non-magical. If the wielder uses Project Dirge for any reason other than maintaining this effect, it automatically ends. During this time, those affected may notice the wielder momentarily and act accordingly with a move or standard action, before immediately forgetting the wielder exists. Deaf creatures are unaffected by this ability and any creature attempting to cover its ears or drown out the sound may make a Will save DC 16 each round to be unaffected until the beginning of their next turn. This ability does not function within the radius of a Silence spell. This is a mind-affecting effect.   Finally, Project Echo Dirge enables the user to cast Ear Piercing Scream 3/day, Sonic Thrust 1/day, and Shout 1/day. The caster level for these spells is 7th and the saving throw DCs are 16.   There is another button under a welded shut button with a currently unknown effect when pressed.