Yamaha BF-11 Specifications download pdf (Page 5)

BF-11 Quick Guide

English

CAUTION

• Do not use or expose the device to excessive dust,

or extreme cold. Doing so may cause the device to

malfunction.

• Do not rest your weight on, or place heavy objects

on the device, and do not use excessive force on

the buttons, switches, connectors or earphone

cable.

• Do not touch the connector with wet hands. If the

device gets wet inside from the connector, it may

cause the device to malfunction.

•Take care not to tangle the earphone cable around

your body or neighboring objects, since this can

cause injuries or accidents.

• Do not use the device or earphones for a long

period of time at a high or uncomfortable volume

level, since this can cause permanent hearing loss.

If you experience any hearing loss or ringing in the

ears, consult a physician.

• Some people may experience an abnormal

sensation or discomfort on their skin. If this should

occur, stop using the device and consult a

physician.

•When using the optional AC power adaptor, unplug

the AC power adaptor from the wall AC outlet when

you are not using the device for a long time, or

during electrical storms.

• Do not try to exercise with the device while

charging. Doing so may cause the device to

malfunction. Moreover, the USB cable may get

tangled up with your body and result in injury.

•When cleaning the device, use a soft, dry cloth. Do

not use paint thinners, solvents, cleaning ﬂuids, or

chemical-impregnated wiping cloths.

This device contains a lithium-ion battery.

After usage, you may recycle the battery,

but never attempt to remove it by

yourself. Have the device inspected by

qualiﬁed Yamaha service personnel. If

there is no Yamaha service personnel in

your area, dispose of it properly according to

relevant environmental laws and disposal rules in

your area.

•Yamaha cannot be held responsible for

damage caused by improper use or

modiﬁcations to the device.

•Yamaha cannot be held responsible for

any health problems during exercise with

the device. Take full responsibility for your

own health.

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Yamaha BF-11 Specifications Page 5

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