The World's first Innovative Acoustic iPhone Case Speaker.
Not just louder — clearer by design.
EchoTune’s patented natural-echo resonance brings rich, powerful clarity to voices and music across a wide frequency range — no electronics or batteries required. Pat. JP7725035B
Enjoy open-ear listening with effortless voice clarity — ideal for speakerphone calls, music, and everyday audio.
See the Sound. Own the Skeleton Edition.
✅ 40% OFF — Save $66 off retail
✅ Skeleton Edition — Kickstarter exclusive
✅ Risk-free reservation — $1 fully refundable
🔹Email & Click the “Reserve Now for Just $1” button!
Problem：
Struggling with unclear speaker sound or muffled voices?
Voices sound distant or muffled・Video sound lacks clarity・Bluetooth setup is confusing or frustrating
EchoTune helps make voice audio more focused and natural.
Customer Benefits
Experience clearer voice details — thanks to Natural Echo.
EchoTune uses natural echo to capture delayed sounds, bringing out subtle voice textures and tonal clarity
— no batteries, no settings, just better sound．
🔊 Experience voice sound with enhanced presence and natural resonance.
Our unique acoustic resonance design adds natural echo and depth, reshaping speaker sound to be more direct and focused—like the person is right in front of you.
🎧 helps preserve the natural shape of speech sounds
By gently extending speech sounds like p, t, and s, EchoTune makes words clearer and easier to understand—so you don’t have to keep saying “Can you repeat that?”
📣 Sound That Reaches Far and Stays Sharp.
With built-in directional projection, EchoTune sends sound forward—so your voice stays loud and clear, whether you're across the room on a video call or outside in the open air.
🔋 Always Ready. No Charging. No Power Needed.
EchoTune works anytime, anywhere—no batteries, no cables, no setup, no Bluetooth. From cafés to parks to campsites, enjoy spontaneous calls and music without worrying about power or connections.
Technical Evidence
EchoTune Stracture.
PAT. JP7725035B
Fabry–Pérot Resonator Tubes
Amplify your voice naturally through acoustic resonance, creating rich echo and reverb without any electronics.
Noise-Cancelling Resonance Chamber
helps reduce sound scatter for clearer projection and directs sound forward for focused, clear delivery.
🎧 Enjoy louder, warmer, and more immersive sound — engineered entirely by structure.
EchoTune：Natural Echo Waves Beyond the Ordinary
🔹 KeyPoint 1 : Standing Waves
Voice is naturally amplified—up to +15dB—through Standing Waves inside the Fabry–Pérot structure.
No battery, no electronics, no effects needed.
🔹 KeyPoint 2 : Natural Echo Waves
The waveform begins smooth and simple, then becomes more complex through multiple reflections and interference.
As it fades naturally, a gentle echo remains in the ear—adding clarity and depth without artificial processing.
Sound Pressure Distribution Explained
This simulation visualizes how MetaTune naturally amplifies sound.
Standing Waves form inside the Fabry–Pérot structure, boosting specific voice frequencies by up to +18dB.
These waves radiate outward as Natural Echo, creating a smooth, lingering resonance that makes speech easier to hear.
No battery, no electronics—just pure acoustic physics.
Acoustic clarity shaped by physics—not algorithms.
Unlike hearing aids or DSP devices that digitally correct limited frequency bands,
EchoTune amplifies the full vocal range—naturally, seamlessly, and without electronics.
That’s why it sounds not just louder, but clearer.
Hear the Proof
This is what EchoTune sounds like.
Same volume, clearer sound—A/B in minutes.
See the Sound!
Own the Skeleton Edition.
Choose your color later—Skeleton or White.
Skeleton is only available for early backers during Kickstarter.
Once it’s gone, it’s gone.
See the Sound. Own the Skeleton Edition.
✅ 40% OFF — Save $66 off retail
✅ Skeleton Edition — Kickstarter exclusive
✅ Risk-free reservation — $1 fully refundable
🔹Email & Click the “Reserve Now for Just $1” button!