ThinkSound in20 Headphone
Best sustainable wired earbuds for daily commuters and active listeners.
These wired earbuds prove that sustainable materials like walnut don't just look good—they deliver a warm, accurate sound profile that plastic alternatives struggle to match. While you lose the convenience of wireless connectivity, you gain a reliable, sweat-resistant companion that sounds better and lasts longer than most disposable tech.
$149.99
Who it's for
- Commuters needing long-term comfort and effective noise isolation
- Audiophiles seeking a balanced and natural sound profile
- Eco-conscious listeners prioritizing sustainable and unique materials
Who should skip it
- Shoppers preferring easy access to mainstream retail brands
- Users requiring integrated microphone and remote controls
- Budget-focused buyers looking for affordable audio gear
Performance breakdown
Acoustic Fidelity
Walnut housing delivers a warm, rich sound signature with impressive accuracy.
Build Quality
Sustainable wood and aluminum construction feels premium and built to last.
Noise Isolation
Passive seal effectively dampens ambient noise for focused, immersive listening sessions.
Call Clarity
In-line microphone provides reliable, crisp voice pickup for daily virtual meetings.
Ergonomic Comfort
Lightweight design and multiple eartip options ensure a secure, fatigue-free fit.
Active Versatility
Sweat-resistant materials and tangle-free cabling handle workouts and commutes with ease.
Key Specs
Driver Size
8.0 mm
Impedance
16 ohm
Sensitivity
96 ±3dB @ 1KHz 1mW
Frequency Response
18Hz to 20kHz
Weight
9.5g
Cable Length
4.0 feet
Connectivity
Wired
Microphone Type
In-line
Noise Cancellation
Passive Noise Isolation
Compatibility
Mobile devices (adapter may be required for some devices)
Know before you buy
Still have a question?
Ask Metto anything about the ThinkSound in20 Headphone before you decide.