From LEGO Batman Wiki
|User||Robin and Nightwing|
|Powers and Abilities||Can hack into a computer panel and control an object.|
The Technology Suit is a suit upgrade for Robin and Nightwing unlocked in the first level of the game. This allows them to operate green tech panels to control specific items using a hacking device built in to their backpacks, once they have hacked in, they can control that thing using several buttons on the control panel.
Upgrades for this are to make a decoy (a non-moving clone) to take your place while you're busy. The decoy can't move but enemies will still attack it.