Does the JBL Tune 225TWS have noise cancelling?

No. It is a passive-seal earbud with no ANC, so it blocks only some surrounding noise. JBL's Tune ANC and Live models add active noise cancelling.

Can I use one earbud at a time?

Yes. Each bud works independently for music and calls, which helps when you want to keep one ear open.

Is it sweatproof for workouts?

No. It has no water or sweat resistance rating, so heavy sweating or rain can damage it. JBL's sport and Reflect lines are the better fit for training.

How many devices can it connect to?

One at a time. It has no multipoint, so you must disconnect from one device before pairing another.

What comes in the box?

The two earbuds, the charging case, a short USB charging cable and silicone ear tips in a few sizes.

Does it work with the JBL app?

It pairs without an app. The JBL Headphones app support is limited on this model, so EQ and firmware features are basic compared with newer JBL earbuds.