Scan to import
If a node is a QR image, v2rayN's menu has "Scan QR code on screen". Show the code on your display and click it — it recognizes and imports automatically, no phone needed as a go-between.
Generate a share QR
Right-click a node → Share to show a QR code or copy a vless:// link, handy for moving it to v2rayNG on a phone.
Safety note
A QR code is the full node key. Never post your own node's QR to a public group or social media — it's the same as posting your password, and it'll be leeched, throttled, or banned fast.