The SuperRedstone is craftable item that acts like a sonic screwdriver. it is crafted by:
GRG PTB III
G = glowstone dust R = redstone dust P = Redstone repeater T = Redstone torch B = Wooden button I = Iron Ignot
to start using the sonic screwdriver simply type /sonic help choose a number then type /sonic <number> to use the sonic screwdriver just right click the entity or place where you would like the effect to take place
With the SuperRedstone you can do a number of things;
to turn invisible simple right click the player you would like to hide from, this also applies to freezing people!!