ThinkSound in20 Headphone

Yes, the sustainable walnut housing is chosen for its acoustic properties. It helps produce a warmer, more natural resonance that contributes to the rich and accurate sound signature these headphones are known for.

Absolutely. The in20 features an integrated high-definition in-line microphone designed to capture clear audio, making them reliable for both casual calls and professional virtual meetings.

Because these are in-ear monitors, the passive noise isolation relies on a proper seal within your ear canal. When you use the correct eartip size from the included set, they effectively block out a significant amount of ambient background noise.

They are built with a sweat-resistant design and a tangle-resistant cable, making them well-suited for active use. While they aren't fully waterproof, they can handle the moisture and movement typical of a standard workout.

The in20 uses a standard wired connection. If your smartphone lacks a 3.5mm headphone jack, you will need to use a separate USB-C or Lightning-to-3.5mm adapter to connect them.

The headphones come with multiple eartip options in different sizes. We recommend testing each pair to find the one that creates a secure, comfortable seal in your ear canal, which is essential for both comfort and sound quality.