These operating instructions describe how to correctly wear, adjust, and replace the Pro.2 stereo earphones. They include color‑identification guidance (left earphone gray, right earphone white) and step‑by‑step procedures for fitting the earphones.
The manual also covers safety precautions such as avoiding high volume, not using the earphones while driving, keeping them away from children under three, and cleaning instructions using gentle washing. The content is presented in several languages to aid international users.