Huawei TalkBand B1 Quick Start Manual page 205

pacemaker to prevent potential
interference with the pacemaker. If
using a pacemaker, hold the
device on the side opposite the
pacemaker and do not carry the
device in your front pocket.
Protecting your hearing when
using a headset

hearing damage, do not listen at
high volume levels for long
periods.
To prevent possible
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