|This needs a stretch.|
Batman's miniature bat-radio is hidden within the belt buckle of his yellow utility belt.
Powers and abilities
It can emit a signal for the police to find Batman and Robin if they are lost or trapped and unable to free themselves.
The New Scooby-Doo Movies
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- Presumably, Robin's miniature bat-radio is also contained in his belt buckle.
- It's not explicit about whether the miniature bat-radio is hidden inside the belt buckle or the belt buckle, itself.