The red/white dome hides one of Big Walk’s most confusing co-op puzzles — and it’s easy to waste 20 minutes on the wrong microphone if you don’t know what to listen for. The setup looks simple: one player sits in a chair with a microphone, another walks around testing the scattered mics, and somewhere in that loop is a single correct answer. The catch is that every microphone picks up your voice to some degree, so the seated player has to judge clarity, not just sound. This guide breaks down exactly who does what, how to identify the right microphone on the first or second try, and what separates this puzzle from the nearby green chair challenge.
Where the Puzzle Lives and What You’re Actually Doing
The microphone puzzle is inside the red/white dome — a distinct structure you’ll recognize by its striped exterior. Walk in and you’ll find a chair with a microphone set up for one player, while several other microphones are scattered around the room. The core loop is simple: the seated player activates their microphone, the testing player speaks into each mic one at a time, and the seated player identifies which one comes through with unmistakable clarity.

The reward triggers when the testing player presses the button linked to that specific microphone. Get it right and the puzzle levels up, granting the item. Get it wrong and nothing happens — no penalty, no reset, just a dead end until you try a different mic.
Player Roles and Setup
You need two players for this one. There’s no solo workaround, so grab a friend or a second controller.
| Role | Action | Key Responsibility |
|---|---|---|
| Seated Player | Sits on the chair, enables the microphone | Listens for the clearest audio signal |
| Testing Player | Moves around the room, speaks into each mic | Tests every microphone, waits for the signal, presses the button |
The seated player’s job is the harder one. They have to resist the urge to signal when they simply hear the testing player’s voice. A microphone can pick up your voice from across the room, so the seated player will hear something from every mic. The correct one sounds different — crisp, close, almost like the testing player is sitting right next to them. Muffled or distant audio means that mic is wrong, no matter how clearly the words come through.
Tip: If the seated player isn’t sure, have the testing player repeat the same phrase (“test, test” works fine) two or three times into the same mic before moving on. The difference between “audible” and “super clear” becomes obvious with repetition.
Step-by-Step Solution
Follow this exact sequence and you’ll clear the puzzle without the usual trial-and-error frustration.
- Seated player takes the chair and enables the microphone. Wait until they confirm they can hear ambient room audio before the testing player starts.
- Testing player moves to the first microphone in the area. There’s no required order — just pick one and work through them systematically so you don’t skip any.
- Testing player speaks directly into the mic with a consistent phrase like “test, test.” Keep the same volume and distance for every mic so the seated player is comparing apples to apples.
- Seated player listens for clarity, not volume. The correct microphone sounds like the testing player is speaking directly into their ear. Everything else sounds distant, muffled, or echoey.

- Seated player signals by waving their arms when they’ve locked onto the right mic. This is the only communication method the puzzle gives you, so make it obvious — big, exaggerated waves beat subtle hand raises.
- Testing player confirms the signal and clicks the button corresponding to that microphone. If you’re not sure which button maps to which mic, trace the cables or check the layout before pressing.

- If the puzzle levels up, you nailed it. The reward pops immediately. If nothing happens, you pressed the wrong button — go back to step 4 and listen again.
Warning: Do not let the testing player decide which mic is correct based on what they hear from their end. They’ll hear themselves clearly through every mic they speak into. The seated player’s judgment is the only one that matters.
Common Mistakes and Fixes
Most failures on this puzzle come down to a few predictable errors. Here’s what goes wrong and how to correct it.
| Mistake | Consequence | Fix |
|---|---|---|
| Seated player signals on any audible audio | Wrong button pressed, no progress | Wait for unmistakable clarity before waving |
| Testing player speaks at different volumes per mic | Inconsistent audio, hard to judge | Keep the same volume and distance for every test |
| Testing player relies on their own hearing | Presses a button without a signal | Always wait for the seated player’s arm wave |
| Both players rush through mics quickly | Seated player misses the clear one | Test each mic 2–3 times before moving on |
This puzzle is also completely separate from the green chair with the low microphone — that’s a different challenge with its own mechanics. If you’ve solved that one, don’t assume the same logic applies here. The red/white dome puzzle is purely about audio clarity and player communication.
The whole thing takes about five minutes once you know what to listen for. The seated player needs patience, the testing player needs consistency, and both of you need to trust the clarity rule over everything else.
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- Big Walk: How to Solve the Green Seat Speaker Headphones Sound Button Puzzle
- Big Walk: How to Solve the 3259, 1883 2321, 1976 Red Coordinates Puzzle
- Big Walk: 10 Pro Tips You Should Know
- Big Walk: The Purple Flag Pole Golf Puzzle Guide
- Big Walk Belt Location Guide: How to Earn the ‘Big Help’ Achievement