7.Charging
When
BH258A
is
in
low
power
or
can’t
power
on,
you
can
charge
it
via
a
DC
5
V
USB
charging
cable.
The
red
indicator
light
stays
on
during
the
charging
process
and
goes
off
when
the
charging
is
complete.
8.
Automatic
Power
‐
saving
Function
1.If
BH258A
hasn’t
been
connected
to
any
devices,
it
will
automatically
enter
standby
mode
with
3
indicator
lights
off
after
10
minutes
to
save
power;
Short
press
any
button
to
activate
paring
state.
2.In
Bluetooth
connection
state,
if
it
exceeds
the
effective
Bluetooth
range,
it
will
disconnect
and
automatically
enter
standby
mode
after
10
minutes
to
save
power.
Short
press
any
button
to
activate
paring
state.
3.After
BH258A
completes
the
connection
in
10
min,
3
indicator
lights
will
go
off
to
save
power.
Short
press
any
button
to
activate
indicator
light.
Considerations
1.
If
BH258A
cannot
be
paired
with
two
devices,
please
reboot
BH258A
and
try
pairing
again.
2.
It’s
recommended
to
use
headphones
with
same
chips
when
pairing
to
two
headphones
to
prevent
from
intermittent
music,
silent
sound
or
disconnection
etc.
3.
In
Bluetooth
transmit
mode,
BH258A
can
be
paired
with
a
Bluetooth
headphone
and
Bluetooth
speaker.
BH258A
can’t
be
paired
with
smartphone
or
other
similar
devices.
4.
For
a
better
music
quality,
it’s
recommended
to
select
headphones
of
a
same
model
when
pairing
BH258A
to
two
headphones.
5.
To
complete
the
Bluetooth
pairing,
it’s
recommended
to
use
BH258A
in
the
place
where
there
are
few
obstructions
or
other
Bluetooth
devices
using.
6.
If
the
pairing
fails,
please
clear
the
pairing
list
on
BH258A
and
smartphones
etc.
and
try
pairing
again.
Meanwhile,
check
whether
BH258A
is
in
Bluetooth
pairing
mode.
Also,
you’d
better
turn
off
other
Bluetooth
devices.
7.
In
RX
mode,
BH258A
cannot
support
hands
‐
free
calling
because
it
has
no
mic
function.
FCC
WARNING
Any
Changes
or
modifications
not
expressly
approved
by
the
party
responsible
for
compliance
could
void
the
user’s
authority
to
operate
the
equipment.
This
device
complies
with
part
15
of
the
FCC
Rules.
Operation
is
subject
to
the
following
two
conditions:
(1)
This
device
may
not
cause
harmful
interference,
and
(2)
this
device
must
accept
any
interference
received,
including
interference
that
may
cause
undesired
operation.
Note:
This
equipment
has
been
tested
and
found
to
comply
with
the
limits
for
a
Class
B
digital
device,
pursuant
to
part
15
of
the
FCC
Rules.
These
limits
are
designed
to
provide
reasonable
protection
against
harmful
interference
in
a
residential
installation.
This
equipment
generates
uses
and
can
radiate
radio
frequency
energy
and,
if
not
installed
and
used
in
accordance
with
the
instructions,
may
cause
harmful
interference
to
radio
communications.
However,
there
is
no
guarantee
that
interference
will
not
occur
in
a
particular
installation.
If
this
equipment
does
cause
harmful
interference
to
radio
or
television
reception,
which
can
be
determined
by
turning
the
equipment
off
and
on,
the
user
is
encouraged
to
try
to
correct
the
interference
by
one
or
