Remote Control Batarang

The Remote Control Batarang is a special Batarang that Batman can manually control once released. They are useful for hitting objects that are out of reach. The device is built with brakes and acceleration, and allows fine control over its movements. If sent through electricity, they retain the charge and can blow out fuse boxes to open doors.

Batman: Arkham Origins
As with its Arkham City counterpart, this Remote Controlled Batarang functioned the same, with built-in brakes and acceleration controls that proved useful for activating switches that were out of reach, or conduct electricity to activate fuse boxes.

Batman: Arkham Origins Multiplayer
The Remote Control Batarang still functioned similar to its Arkham City/Origins counterpart.

Batman: Arkham Origins Cold Cold Heart
The Remote Control Batarang functioned similar to its Arkham City/Origins counterpart.

Batman: Arkham Asylum
In Batman: Arkham Asylum, the Remote Control Batarang could be steered through complex flights, and took out several enemies at once. It had to be "recharged" before using another. If you caught a Remote Control Batarang, you won an Achievement/Trophy called: "Catch!".

Batman: Arkham City
In Batman: Arkham City, the Remote Control Batarang was built with brakes and acceleration, and provided fine control over its movements. If it went through electricity, it was able to blow out fuse boxes. An upgrade acquired through the main story, called Reverse Batarang, summed up to the ability for it to, once thrown, travel around an enemy, hit them from behind, confuse them, made them turn their backs to Batman, and allowed for Silent Takedowns.

Batman: Arkham Knight
In Batman: Arkham Knight, the Remote Control Batarang was similar to City, but improved. It was easier to control and bounced off surfaces, unlike in Arkham City, where it would cease control as soon as an obstacle was hit. However, unlike City or Origins, the reverse option was not gained throughout the story, but instead as a WayneTech Upgrade. It also was now equipped with a scanner, being able to detect id tags through walls, micro-explosives wired into a thug's brain, and Optic Camouflage Soldiers.

Trivia

 * If you tried to throw a Remote Control Batarang at Deadshot, he shot it in mid-air. This also applied to The Arkham Knight during the fight against him on the Militia HQ.
 * If you threw a Remote Control Batarang and then steered it toward Batman, he would catch it easily.
 * Some NPC characters could also catch the Batarang in Mid-flight:
 * Azrael in Arkham City. Letting him catch one awards the player the "Catch!" trophy/achievement.
 * Every ally in Batman: Arkham Knight was capable of this feat. However, Azrael could not, as he was always kneeling when found in Free Roam.
 * In Batman: Arkham Origins, when the Remote Control Batarang could be turned into the Reverse Batarang when the Mad Hatter was holding the girl hostage, it was possibly a throwback to how the ability was introduced in "Batman: Arkham City" when Ra's al Ghul was holding Talia hostage.
 * In Batman: Arkham City, if you visit the Gladiator Pit in the Museum (after completing the story), using an Remote Controlled Batarang charged with the electricity in the fence and aiming it at a thug will instantly take them out. Similarly, in Riddler's Revenge, there is a modification that allows the character's main gadget to instantly take out thugs with one hit, and Batman's Batarangs in this scenario can be seen as being electrified.
 * The Remote Control Batarang is one of only five gadgets to appear in all Arkham games so far: the others are the Batarang, the Explosive Gel, the Line Launcher and the Batclaw.