Up until a day before we were to arrive in Dresden, I had to meet with the general and heads of each unit dozens of times to talk about tactics.

"What is this strange-looking thing?" Lieutenant General Fabian, the commander of the 3rd Army, asked while touching the item I gave him.

"It's a wireless magic communicator that I made. The range is a radius of 10 kilometers centered around me, so we can communicate anywhere within that area."

"This finger-sized thing can do something like that from such a long distance?"

The wireless magic communicator that I created acted akin to a radio tower and significantly increased the range of telecommunication. However, its weakness was that if someone were further than 10 kilometers from me, our messages wouldn’t reach each other. Yet, this problem was solved by attaching a repeater to other people’s communicators.

"Yes, the magic communicators distributed to the regimental commanders serve as radio repeaters, and so, theoretically, the maximum range of the radio is across both ends of the border. However, even with the repeaters, I think the maximum distance is 100 kilometers due to the deterioration of the sound signal."

Extending this distance might be possible if I made a radio amplifier in the middle, but there was...