JBL rolled out firmware updates that refine the Tour ONE M3 sound curve, pulling from the Harman benchmark and testing by ‘Golden Ears’ panels. The new tuning, now live as version 4.8.0, delivers tighter bass and cleaner mids‑highs, making the headphones feel more natural and artist‑faithful. An over‑the‑air drop also introduces a fresh deep‑green finish with copper accents.

The company also upgraded the Smart Charging Case and the JBL SMART Tx UI. Firmware 4.9.x now offers a combined horizontal‑vertical menu, larger icons and refreshed typography, cutting interaction steps. Users can switch sources, join Auracast broadcasts and tweak advanced settings in a clearer visual hierarchy.

Retailers and JBL.com now sell the green Tour PRO 3 at €299, the Tour ONE M3 at €349.99 and the Tour ONE M3 + SMART Tx at €399.99. OTA releases will bring the new sound curve and UI updates to all in‑market units, ensuring existing owners receive the same level of refinement as new buyers.

These incremental tweaks underscore JBL’s focus on delivering premium audio to a discerning market. By combining scientifically validated tuning with a smoother user interface and a stylish color option, the brand reinforces its position as a leader in high‑end earbuds and headphones. Owners can enjoy the upgrades immediately, while new buyers gain a product that feels both refined and contemporary.