What is the visible light transmission range of Chamelo lenses?

Ranges vary by model. Music Shield Gen 2 moves from 63% to 17% VLT, Aura and Aura Audio from 65% to 20% VLT, Dusk Classic from 38% to 4% VLT, and Zurix from 50% to 10% VLT. Every lens blocks 100% of UVA and UVB regardless of tint level.

Are Chamelo smart glasses available with prescription lenses?

Yes. Selected frames including Aura Rx support single vision, progressive and reading prescriptions. Prescription work is fulfilled through our certified optical partners after your frame order is placed.

How long does the battery last and how is it charged?

Tint-only models hold a charge for multiple days of typical use because power is consumed only during a tint transition, not while holding a state. Audio models depend on playback time. Zurix reaches roughly 80% charge in about 80 minutes via the included magnetic cable.

Are Chamelo frames suitable for sport and wet conditions?

Sport models such as Music Shield, Shield and Golf Shield carry an IPX4 water-resistance rating, which covers sweat and rain splash. They are not designed for submersion or swimming.

Does Chamelo support wholesale and distribution partners?

Yes. Chamelo works with optical retailers, sporting goods chains and regional distributors worldwide. Reach out through our contact page with your market, channel and expected volume, and our partnerships team will respond with catalogue and certification documentation.

Engineered in Japan

High Contrast Tint

One Frame. Every Light.

Q: How does Chamelo electrochromic lens technology work?

Chamelo lenses use a thin electrochromic film laminated between optical layers. A low-voltage signal from the temple electronics changes the molecular alignment inside the film, which darkens or lightens the lens in under a second. Our Eclipse lenses shift tint density across a measured transmission range, while Prismatic lenses shift both density and hue.

Electrochromic lenses that shift tint in under a second — no lens swap, no compromise.

Explore The Range See The Technology

Golf Shield high contrast electronic tint sunglasses on the green

Built For Contrast

Read The Green

Contrast-boosting tint tuned for turf definition and low-glare fairways.

Golf Lens Guide Shop Bestsellers

Music Shield Gen 2 instant tint audio sunglasses

Slide To Tint

Tint Plus Audio

63%–17% transmission range with open-ear Bluetooth audio built into the temples.

Music Shield Gen 2 Audio Eyewear Guide

Aura prismatic color changing smart sunglasses

Prismatic Lens System

Four Colors. One Tap.

Change lens hue on demand — the world's first electronically color-changing eyewear.

Discover Aura Prismatic Lens Tech

What's trending now

Bestselling Smart Frames

Six platforms, one lens philosophy: adapt to the light instead of changing your eyewear. Each frame below lists its measured transmission range so specifiers, buyers and athletes can compare like for like.

All Bestsellers

Bestseller Aura Audio prismatic color changing smart sunglasses

Aura Audio

Rimless rectangle with Prismatic™ color-changing lenses and open-ear audio drivers.

65%–20% VLT · IPX4 View Aura

Just Dropped Music Shield Gen 2 instant tint audio sport sunglasses

Music Shield Gen 2

High-wrap shield geometry, slider-controlled tint and upgraded premium audio stage.

63%–17% VLT · IPX4 View Music Shield

Zurix

Ultra-light cat-eye acetate silhouette with tap-to-tint control and fast recharge.

50%–10% VLT · 80% in 80 min View Zurix

Infinity

Limited-release lifestyle frame pairing instant tint with Bluetooth audio playback.

Instant Tint · Bluetooth View Infinity

Shield

Single-lens wrap coverage built for cycling, running and high-glare open terrain.

High-Wrap · 100% UV View Shield

Rx Ready

Aura Rx

Prescription-ready Prismatic platform for single vision, progressive and reading scripts.

Rx Compatible · Color Change View Aura Rx

Shop by collection

Three Ways To Wear It

Sport geometry for movement, lifestyle silhouettes for daily wear, and the Prismatic family for colour-shift expression. Every collection shares the same electrochromic core.

Shop All Frames

Sport

Performance Optics

High-wrap shields, IPX4 sealing and slider tint control for training in shifting light.

Sport Lens Guide

Lifestyle

Everyday Adaptive

Wayfarer, cat-eye and rimless builds that carry from bright street to dim interior.

Tint Adjustable Guide

Prismatic

Colour On Demand

Four selectable lens hues in a single frame — a Chamelo-exclusive lens architecture.

Colour Change Guide

Engineered in Japan

Inside The Lens Stack

Chamelo lenses are not photochromic. Instead of waiting on UV exposure, an electrochromic film responds to a low-voltage signal — which is why the transition is immediate, repeatable and controllable indoors, behind a windshield and in overcast light.

<1s
Eclipse™ TransitionTint density shifts on command via slider, button or app — no ambient UV required.
4
Prismatic™ HuesSelectable lens colours inside one frame, switched by a single temple tap.
100%
UVA / UVB BlockFull-spectrum UV protection at every tint level, light or dark.
IPX4
Water ResistanceSweat- and rain-splash rated on the full sport range for outdoor training.

Read The Innovation Brief Electrochromic Explained

Chamelo lens technology

Recognised By The People Who Test It

Independent editorial teams, CES juries and clinical advisers have evaluated our lenses in the field. Below are the awards and the verbatim conclusions of the reviewers who wore them.

"The fit is secure, the transition slider is responsive, and it's very cool to be able to keep your sunglasses on as the sun starts setting."

WIRED

"Music Shield is not just a pair of sunglasses; it's a game-changer for fitness enthusiasts seeking style, functionality, and performance."

Forbes

"They're one of TIME's Best Inventions of the Year for good reason."

USA Today

"Legitimate innovation rather than CES vaporware."

Yahoo Tech

Optics backed by

Dr. Jay Schwartz

Team doctor for the Phoenix Suns and Arizona Diamondbacks, and clinical adviser to hundreds of professional athletes on visual performance and glare management.

Officially licensed

NBA Team Editions

Music Shield Gen 2 and Aura in licensed team colourways — Knicks, Lakers, Celtics, Bulls, Warriors, Suns, Spurs and Heat.

Ambassador Frames

Backed by doctors

Worn By Icons

Athletes, artists and coaches who wear Chamelo in competition and on camera — recorded in real conditions, not studio renders.

Aura

Music Shield

Shield

Aura

Thousands of verified reviews

From People Like You

4.7 average across 9,201 verified reviews from more than 100,000 wearers in over 60 markets.

★★★★★

"Best purchase I've made in a long time. Definitely worth every penny — the way the technology works is amazing."

Josh R.Verified buyer · Aura Audio

★★★★★

"I just received mine 10 days ago and used them for a 25 km ultra trail. Super light, and the sound and battery are great."

Brice B.Verified buyer · Music Shield

★★★★★

"Adjustable tint plus built-in speakers feel futuristic. Don't overthink it — just get them."

Omar M.Verified buyer · Music Shield

★★★★★

"Excellent service and warranty. Love the product — everyone on my jobsite ended up with a pair too."

Marc B.Verified buyer · Music Shield

Buy with confidence

Our Promise

Read The FAQ

30-Day Guarantee Wear them in real conditions. If the lens behaviour isn't for you, return within 30 days.
1-Year Warranty Covers electrochromic film, electronics and audio modules against manufacturing defects.
Fast, Free Shipping Tracked despatch with regional fulfilment across North America, EMEA and APAC.
A+ Customer Service Human support for fitting, prescription and firmware questions in every market we serve.

Technical questions, answered

Specification FAQ

Written for optical buyers, distributors and technically minded wearers. If your requirement is not covered here, our engineering and partnership teams will answer directly.

How does Chamelo electrochromic lens technology work?

A thin electrochromic film is laminated between optical layers. A low-voltage signal from the temple electronics changes molecular alignment inside the film, darkening or lightening the lens in under a second. Eclipse™ lenses shift tint density across a measured transmission range; Prismatic™ lenses shift both density and hue.

What is the visible light transmission (VLT) range per model?

Music Shield Gen 2: 63%–17%. Aura and Aura Audio: 65%–20%. Dusk Classic: 38%–4%. Zurix: 50%–10%. Every lens blocks 100% of UVA and UVB at any tint level, so protection is never dependent on lens state.

Are prescription lenses available?

Yes. Selected frames including Aura Rx support single vision, progressive and reading prescriptions, fulfilled through certified optical partners after the frame order is placed. Pupillary distance and segment height are captured during the prescription step.

What is the battery behaviour and charge time?

Tint-only models draw power only during a transition, not while holding a tint state — so typical use spans several days per charge. Audio models depend on playback hours. Zurix reaches approximately 80% charge in about 80 minutes using the supplied magnetic cable.

Are the frames suitable for sport and wet weather?

Sport platforms including Music Shield, Shield and Golf Shield are IPX4 rated, covering sweat and rain splash. They are not designed for submersion, swimming or water sports with impact entry.

Do you work with wholesale and distribution partners?

Yes. Chamelo supplies optical retailers, sporting goods chains and regional distributors worldwide. Contact us with your market, channel mix and expected volume, and our partnerships team will return catalogue, certification and lead-time documentation.