This document contains safety instructions for Yamaha products.
This document provides safety precautions for a Yamaha audio product, including handling, charging, battery use, water and fire warnings, wireless use, and hearing-loss prevention.
It also includes FCC and IC notices, abnormality-response guidance, general care instructions, and warranty-policy references.
| Charging voltage | 5 V DC |
|---|---|
| Minimum charging current | 0.5 A |
| Maximum weekly listening time at 80 dB(A) | 40 hours/week |
| Maximum weekly listening time at 89 dB(A) | 5 hours/week |
| Minimum distance from pacemaker or defibrillator | 15 cm (6 in) |
Stop using it immediately and request an inspection or repair from the dealer or qualified Yamaha service personnel.
Use a commercially available USB power adaptor with 5 V DC/min. 0.5 A output.
Charge it once every six months.
Do not use it within 15 cm (6 in) of a person with a pacemaker or defibrillator implant.