Bicycle/motorcycle radio?

Question

Iron

Hello.
We often ride on various vehicles, and there is a lack of any intercom, which:
1. Fits under the helmet.
2. It was not necessary to press anything in the process, because. hands are almost always busy.
3. Would not use GSM, etc. networks, that is, simply between two devices.
The distance is not necessarily large, at least 5-10 meters.
Can you tell me what it could be? Thank you.

Answer 1

A walkie-talkie with a wired headset and voice activation will go?
Midland G5 for example, I use this actively. On the highway, the real range is about a kilometer. In urban areas - 100-200 meters. Registration is not required.
A pair costs around 1000 rubles.