Classroom Noise MonitorFocus Mode
When the room is quiet, the light slowly grows, and a focus mark fills for every stretch of calm. When it gets too loud, everything goes on hold: progress is kept, but the calm has to come back.
Class goal: Fill all nine marks before the session ends.
Your browser will ask permission to use the microphone.
Sound stays on this computer. Nothing is recorded or sent anywhere.
How Focus Mode works
1. Start the session
Pick a session length, press Begin Session, and allow the microphone. The monitor listens for a moment to learn how your room sounds when it is calm.
2. Quiet builds the light
While the room stays quiet, a soft light breathes and slowly brightens, and a focus mark fills for every stretch of sustained calm. Nine marks complete the session.
3. Noise puts it on hold
If the room gets too loud, the session simply goes on hold: no drama, no cartoons. Earned marks are never lost, and the light picks up where it left off once calm returns.
Explore more themes
Traffic Lights
FREEThe classic traffic light noise monitor, full screen! The light stays green and little cars cruise across town while the class is quiet. Too loud turns it red and jams the traffic.
Quiet Jungle
FREEKeep your class quiet and watch a jungle grow full screen! Trees grow when the classroom is calm and wilt when it gets too loud.
Dino Valley
FREEKeep your class quiet and hatch baby dinosaurs from their eggs! Too much noise wakes the volcano and scares the dinos back into their shells.
Butterfly Garden
PROKeep your class quiet and raise nine butterflies from egg to wing! Caterpillars munch, chrysalises ripen and butterflies emerge while the room stays calm: a living life-cycle lesson.
Robot Factory
PROKeep your class quiet and assemble nine little robots on a factory line! The machines pause and amber beacons spin when the room gets loud. Finished robots are never lost.
Ant Colony
PROKeep your class quiet and help busy ants dig an underground colony, chamber by chamber! The digging stops and the tunnels crumble when it gets too loud.
Snail Race
PROKeep your class quiet and cheer nine snails along the garden racetrack! The snails hide in their shells when the classroom gets too loud. Slow and steady wins.
Bouncy Balls
PROThe classic bouncy balls noise meter, flipped to reward calm! Colorful playground balls bounce while your class stays quiet. Too much noise stops the fun and deflates them.
Pirate Treasure
PROKeep your class quiet and fill a pirate chest with treasure! The ship sails toward the island while the room stays calm, and a storm brews when it gets too loud.
Coral Reef
PROKeep your class quiet and watch a coral reef bloom full screen! Corals grow and fish arrive when the classroom is calm, and the reef bleaches when it gets too loud.
Train Journey
PROKeep your class quiet and ride a steam train across the countryside, station by station! The signal turns red and the train stops when it gets too loud.
Space Launch
PROKeep your class quiet to build, fuel and launch rockets to every planet! The countdown holds when the classroom gets too loud.
Wizard School
PROKeep your class quiet and brew nine glowing magic potions in a wizard classroom! The cauldron fizzles and the magic drains away when it gets too loud.
Fairy Village
PROKeep your class quiet and light up a fairy village of mushroom houses! Glowing windows and fireflies fill the glade, until the wind blows the lights out.
Castle Builders
PROKeep your class quiet and build a castle stone by stone! The builders stop and the scaffolding shakes when the classroom gets too loud.
Winter Aurora
PROKeep your class quiet to build a snowman and make the northern lights bloom! Too much noise kicks up a blizzard that blows the snow away.
Balloon Journey
PROKeep your class quiet and ride a hot air balloon from the fields to the stars! The balloon sinks when the classroom gets too loud.
Or head back to the classroom noise monitor homepage for the full overview and FAQ.
Focus Mode questions
Is Focus Mode free to use?
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Yes. Focus Mode is one of the four themes included in the Free plan, with sessions of up to 30 minutes and no account required. Lifetime Pro (a one-time $20 payment) adds the other fourteen themes and unlimited session time.
Can the class lose progress in Focus Mode?
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No. Focus Mode never takes earned focus marks away. Sustained noise puts the session on hold and the light fades a little, but everything picks up where it left off as soon as calm returns.
What age group is Focus Mode best for?
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Focus Mode is the grown-up theme: no cartoons, no characters, just a calm breathing light. It is made for older students (upper elementary through high school) and works beautifully for exams, silent reading, libraries and study halls.