4K Chat

    Checklist

    High-end 1:1 gear & setup checklist

    “I 4kChat because I have a business that needs to be shown — not reduced to a postage-stamp tile.”

    Everything below is checkable in about ten minutes, and none of it is exotic. The theme: a modern browser, a capable camera, a solid uplink, soft light, a decent mic — and on the receiving side, a TV to cast or mirror to. Print it, screenshot it, run it before the call that matters.

    Camera

    • A modern laptop webcam works; a dedicated 1080p/4K webcam or a phone camera is better.
    • Camera at eye height — stack books under the laptop before you buy anything.
    • Lens wiped. A fingerprint is a soft-focus filter you did not ask for.
    • Framing checked: head and shoulders, a little space above the head, product in reach.

    Light

    • No window or bright lamp behind you — backlight turns faces to silhouettes.
    • Soft, even light in front: a window you face, or a shaded lamp behind the camera.
    • If showing a product: a light aimed where your hands will hold it.
    • 60-second self-check in the camera preview before the call.

    Audio

    • Any headset or earbuds beat the laptop mic for echo control.
    • Quiet room: fans, notifications, and the dishwasher are all audible.
    • If using a phone as a second camera, mute its mic and speaker.

    Big screen (receiving side)

    • There is no Smart TV store app — cast or mirror from the browser, or use HDMI.
    • AirPlay, Chromecast/Google Cast, or a cable all work; the cable is the most reliable.
    • Suggest it to your guest ahead of time: 'cast this to a TV if you can.'
    • Full-screen the call on the big display; keep the source device awake.

    Network

    • A solid uplink matters more than download speed — video is uploaded.
    • Wired beats Wi-Fi; if on Wi-Fi, sit near the router and pause the household's big downloads.
    • 4K Chat is direct peer-to-peer. Free has no TURN relay, so some strict networks (hard NAT) may not connect — test the actual network before the actual call.
    • Resolution follows hardware and network; 4K/8K is not guaranteed on any call.

    Room & waiting room

    • Fresh room per meeting from Start a Call — do not reuse last week's link.
    • Waiting room is on by default; join early and admit your guest on your cue.
    • Guests need no account; their camera is optional.
    • Seats: Free up to 4, Pro up to 12, Cinema up to 32 — a phone-as-second-camera takes a seat.

    60-second pre-flight

    • Camera preview: face lit from the front, nothing bright behind you.
    • Product test: hold it up, close and still — can you see the finish?
    • Mic test: say a sentence, confirm the right mic is selected.
    • Guest admitted, then begin — composed, not mid-adjustment.

    Related

    The reasoning behind each item is in the white paper, and the failure modes are in the seven mistakes.

    Keep reading

    The facts, in one place

    Who it's for
    Founders pitching, reviewers and critics, interviewers — high-end 1:1 calls where detail matters.
    What you need
    A modern browser, a camera, and a solid uplink. For a big screen, cast or mirror from your phone or PC.
    Seats
    Free up to 4 · Pro up to 12 · Cinema up to 32.
    Resolution
    Follows your hardware and network. 4K/8K is not guaranteed on every call.
    Connectivity
    Direct peer-to-peer. Free has no TURN relay, so some strict networks (hard NAT) may not connect.
    Smart TV
    Cast or mirror only. There is no Smart TV store app.
    Apps
    Native apps are in development. The browser is the path today.
    Not for
    Emergency use. See Terms.

    You're in the room.

    Video for humans. See it all.