VR headset and radio: what they have in common

1. Step 1. VR headset — has part — Display. A VR headset has two displays, one per eye.
2. Step 2. Display — is part of — Mobile phone. The phone's screen shows the number, messages and menus.
3. Step 3. Mobile phone — evolved from — Radio. Mobile communication is a development of radiotelephony.

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