This document is the owner's guide for Bose QuietComfort 15 Acoustic Noise Cancelling headphones.
This owner’s guide explains how to safely use the Bose QuietComfort 15 acoustic noise‑cancelling headphones. It includes safety warnings, battery installation, and basic operation for both noise‑reduction‑only and audio playback modes.
The manual also covers connecting the headphones to in‑flight entertainment systems, storing and cleaning the headphones, battery life and replacement, ear‑cup cushion maintenance, and troubleshooting common issues such as low volume or crackling noise.
| Maximum input voltage | 9 Vrms |
|---|---|
| Battery type | AAA alkaline (IEC LRO3) |
| Battery life (average) | 35 hours |
| Low‑battery indicator | Flashes at ~5 hours remaining |
The battery provides about 35 hours of use on average.
Use only the Bose airline adapter and follow the plug configuration chart; do not use mobile‑phone adapters.
Yes, simply turn on the power switch; the cord is not required for noise‑reduction‑only operation.
Push the mounting rim back into the earcup until it snaps into place.