Note:Please read the following
information before using
Electronic equipments
To avoid the side effects of electronic
interference,turn off the headphone in the place
where there is clear marks to ban the using of
electronic products.
Civil aviation
Turn off the headphone after boarding the plane and
prohibit using the headphone during the flight to avoid
the interference to civil aviation communication
system.
Medical instruments
Do not use the headphone in hospital or near the
medical instruments without permission. If you use
other personal medical equipment, such as ,the
pacemaker, please consult your equipment
manufacturer or gain the relative information from
your medical doctor .
Maintenance
User should not change any components of
headphone and will lose the after-sale rights if changes
or re-equips the headphone without permission .
BH1521 instruction manual
Sports Bluetooth Headphone