She pressed a switch.
A light blinked.
Then she moved the receiving unit out of range.
The transmitter displayed a failed-delivery indicator.
When she brought the units back within range, the system retried the message.
The receiving device responded with a confirmation tone.
The engineer looked impressed.
"You included acknowledgments."
"Of course."
"Why?"
She gave him a look of exaggerated disbelief.
"Because you always say sending isn't the same as receiving."
He laughed.
"Apparently somebody's been listening."
She grinned.
Then her expression became serious.
"I want to enter it in the regional student engineering exhibition."
"You should."
"But I need a project title."
He considered the device.
"What have you been calling it?"
She hesitated.
Then she turned the wooden box around.
A small handwritten label was attached to the side.
EVERY VOICE DESERVES AN ANSWER.
The engineer stared at the words.
His niece watched him nervously.
"Is that too dramatic?"
He shook his head.
"No."
He touched the label gently.
"It's exactly right."
The girl smiled.
Then she noticed his expression.
"Are you okay?"
He nodded.
"Just proud of you."
She looked relieved.
"Good. Because I also need help making the enclosure look less like a birdhouse."
He laughed so loudly that his mother called from the kitchen to ask what had happened.
For the rest of the afternoon, they worked together.
He showed his niece how to secure the internal wiring and protect the connections from strain.
She adjusted the software.
He suggested a clearer status display.
She argued that the original version looked better.
They disagreed.
They tested.
They laughed.
And eventually, they built something both of them liked.
When the girl left, the engineer remained at the table, studying the device.
For years, his work had focused on large systems.
Networks spanning entire cities.
Communications links supporting police departments, fire crews, ambulances, and municipal services.
But the little wooden box reminded him why he had loved engineering in the first place.
It wasn't about authority.
It wasn't about having access to complicated equipment.
It was about solving problems that mattered to people.
His father had taught him that lesson with broken radios and discarded appliances.
Now he was passing it to another generation.