Product View
Mini USB Charging Port
Blue LED Red LED
Multi-Function Button
On / Off, Pairing / Connect
Answer / Hang Up / Reject Calls
Last Number Redial / Voice Dialing
Transfer Calls
Speaker
Speaker
Volume Up
Hold Call
Call Waiting
Speaker
Volume Down
Hold Call
Call Waiting
Microphone
Mode Button
Microphone Mute
Privacy Handset Mode
Music Play / Pause
Line Out Port
Button Functions
Switch on / off
Pairing / Connect
Answer calls
Hang up calls
Voice Dialing
Reject calls
Transfer calls
Last Number Redial
Adjust Speaker Volume Up / Down
Hold calls / Call Waiting
Restore Factory Default Setting
Microphone Mute and Normal Mode Swap
(functions only in Handsfree Mode)
Privacy Handset / Hands-free Mode Swap
(functions only in Handsfree Mode)
A2DP Initiate and Music Play / Pause
0000
“Mode” Button”
PIN CODE
Product Specifications
Bluetooth Compliant Standards: V2.0+EDR
Bluetooth Profiles Supported: HSP, HFP,
A2DP, AVRCP
Transmitted Power: Class 2
Wireless connection range: 10 Meters
Frequency Band: 2.402GHz~2.480GHz
Charger’s Output Power: DC 5-6V 400mA
Built-in Rechargeable Lithium ion Battery:
3.7V/650mA
Normal Charging Time: 2~3 Hours
Talk Time: Up to 8 Hours
Play Music Time: Up to 8 hours
Standby Time: up to 325 Hours
Operating Instructions
Charging
a)
The internal battery of the HKT 450 must be
fully charged before it can be used. Charging
can be accomplished using the travel charger
and USB cord included in the package. First,
plug the mini USB connector on the USB cord
into the mini USB socket on the side of the
HKT 450. Next, insert the USB connector on
the opposite end of the cord to the USB
connector on the Travel Charger. The HKT450
can also be charged using the USB cord with
the included vehicle power adpator, or with a
computer that has proper USB connector.
b)
Normal Charging Time: Using the
included travel charger and USB cable, the
internal battery will take approximately 3
hours to fully charge.
c)
Charging Indicator: The Red LED on the
HKT 450 will light up during the charge
cycle and turn off when charging is
completed
d)
Low battery indicator: The Red LED on the
HKT 450 will begin to flash every 4 seconds
when the internal battery is low on power.
When this occurs, it is necessary to recharge
the Speakerphone as described above.
Note:
a)
In the case where the HKT 450 has not
been used for a long time or the internal
battery has run completely flat, it may take
several minutes before the Red LED lights up.
b)
When low battery indication occurs, and
the battery is not recharged, the HKT 450
will automatically switch off.
Power On
a)
While the HKT 450 is off, press and hold
the MFB (multi-function-button) for 3
seconds.
b)
An audible tone will be heard and the
Blue LED lights up for 3 seconds.
c)
Release the multi-function-button, and the
device is Power On.
Power Off
a)
With the HKT 450 in Standby Mode, press
and hold the MFB (multi-function-button) for
3 seconds.
b)
An audible tone will be heard and the
Red LED lights up for 3 seconds.
c)
Release the multi-function-button, and the
device is Power Off.
Pairing the HKT 450 with a Mobile Phone
(The HKT 450 must be paired with your
Bluetooth enabled mobile phone before
it can be used)
1)
Pairing Procedure
a)
Place the HKT 450 and the mobile phone
within 3 feet of each other
b)
The Speakerphone should be Power Off
c)
Press and hold the MFB (multi-function-
button) for 6 seconds until an audible tone is
heard and the Red LED and Blue LED start to
flash alternately……the HKT 450 is now in
Pairing mode
d)
Initiate the Bluetooth function on your
mobile phone by setting it to search for new
Bluetooth devices (Please refer to your
mobile phone’s user’s manual for detailed
information)
e)
When the mobile phone shows “HKT450”
found, stop searching and select “HKT450”
f)
When prompted, key-in PIN Code “0000”
and press enter…..your mobile phone and
the HKT 450 will pair with each other. Once
pairing is established, a long tone will be
heard through the Speakerphone and the
Blue LED will flash 5 times slowly. After
pairing is completed the HKT 450 will switch
to Standby mode, and the Blue LED will flash
every 4 seconds.
g)
Once the HKT 450 enters into Pairing
Mode, you will have 2 minutes to finish
pairing. Should the pairing fail within this 2
minute timeframe, a long tone will be heard
through the Speakerphone, the Red LED will
light up for 3 seconds, and then the device
will automatically turn off. If this occurs, you
must repeat the pairing procedures as
described above.
h)
After the HKT 450 is paired with the
mobile phone, return the phone to Standby
Mode, and make sure the mobile phone and
the Speakerphone are within a distance of
30 feet (in open space with no obstruction;
when indoors, effective distance may shorten
depending on building construction and
materials used for construction). You are
now ready to use the HKT 450 to place or
receive calls.
Note:
Some mobile phones may require an
additional step of adding a short press of the
MFB (multi-function-button) on the HKT 450
and manual acceptance of the connection
on the mobile phone.
Connection
a)
Every time the HKT 450 is turned on, it
will automatically search and connect to the
last connected Bluetooth device.
Note:
Some Bluetooth devices require manual
acceptance of the Speakerphone signal
b)
When the HKT 450 is in Standby Mode,
when you short press the MFB
(multi-function-button) on the device, it will
automatically connect to the last connected
Bluetooth device.
Note:
Some Bluetooth devices require manual
acceptance of the Speakerphone signal
c)
When the HKT 450 is in Standby Mode,
short press the ”Mode” buttons on the device
and it will automatically connect the AV
feature of the last connected Bluetooth
device.
Power Save Feature
If the HKT450 is not connected to any paired
device for more than 4 hours, it will automatically
power off to conserve battery power. When this
happens, power on the HKT450 to connect with
your phone.
Disconnect
a)
The HKT 450 disconnects from the mobile
phone by the following methods:
1)
Use the mobile phone or other
Bluetooth devices to break the connection.
2)
Power off the HKT 450.
Answer Incoming Calls
a)
A ringtone heard through the Speaker-
phone will announce an incoming call
b)
Answer the incoming call by pressing the
MFB (multi-function-button) on the HKT 450
once
End Calls
a)
When the HKT 450 is in Talk Mode, press
the MFB (multi-function-button) on the
device once to end the call
Reject Incoming Calls
a)
A ringtone heard through the HKT 450
will announce an incoming call
b)
Reject the incoming call by pressing and
holding the MFB (multi-function-button) on
the device for 3 seconds.
Voice Dialing
a)
Before using Voice Dialing make sure
your mobile phone supports the voice
dialing function, and your mobile phone has
the voice dial tag recorded. (Refer to user’s
manual of the mobile phone for detailed
instructions)
b)
If the phone supports the voice dialing
function, when the HKT 450 and mobile
phone are connected, short press the MFB
(multi-function-button) once, and an audible
tone will be heard through the Speaker-
phone, then say the Voice Call tag to make
the Voice Dial.
c)
If the HKT 450 is playing music, short
press the MFB (multi-function button) once.
The music will stop and an audible tone will
be heard through the Speakerphone. Then
say the Voice Call tag to initiate the voice
dial.
Last Number Redial
a)
Redial the last number dialed by pressing
the MFB (multi-function-button) on the HKT
450 twice quickly.
b)
Transfer a call from the mobile phone to
the HKT 450 by pressing the MFB
(multi-function-button) on the Speakerphone
once quickly; the call is now transferred
from the mobile phone to the HKT 450.
Volume Adjustment
a)
During a call, press the “V+”button or
“V-”button on the HKT 450 to increase or
decrease its speaker volume.
Privacy Handset /
Hands-free Mode Swap
a)
During a call, press “Mute/Mode” button
once quickly
1)
the Blue LED will light up
2)
the speaker volume and microphone
sensitivities will be automatically
attenuated to allow the HKT 450 to be
used like a standard telephone handset
b)
While in Privacy Handset Mode, press
“Mute/Mode” button once again quickly,
and the HKT 450 returns to Hands-free
Mode.
b)
If the HKT 450 is playing music, press the
“Mode Button” to pause the music first, then
initiate last number redial as explained
above.
Note:
Depending on the mobile phone being
used, when you stop the music player and
initiate phone calls from the Speakerphone,
after the call is completed the music player
may not resume playing automatically. If
this occurs, press the “Mode Button” to
re-access the A2DP service, and the music
playing function will be restarted. When
using certain phone models, the music
player must be restarted from the mobile
phone.
Call Transfer between the HKT 450 and a
Mobile Phone
a)
Transfer a call from the HKT 450 to a
mobile phone by holding the MFB
(multi-function-button) on the Speakerphone
for 3 seconds, a short audible tone will be
heard through the HKT 450 speaker and the
call is now transferred to the mobile phone.
Playing Music from the Mobile Phone
through the HKT 450
First, make sure your mobile phone supports
Bluetooth Advanced Audio Distribution
Protocol (A2DP) and Audio Video Control
Protocol (AVRCP) functions (on some phones
the A2DP function may appear as AV
function). The A2DP function allows the
mobile phone to stream music wirelessly to
the HKT 450. During music play, the
AVRCP function allows the “Mode Button”
on the Speakerphone to be used to Play or
Pause the music from the mobile phone.
Due to variations of mobile phones,
procedures to play music through the HKT
450 are not always the same. When the
Speakerphone is paired with a mobile
phone, depending on the software in the
mobile phone, there are a number of ways
to initiate music playing. For some phones,
music play through the HKT 450 is
automatic; when the music player on the
mobile phone is started music will be
streamed through the HKT 450 automati-
cally. Some mobile phones will require that
the “Mode Button” on the device be pushed
to initiate the A2DP function. Other mobile
phone models will require the user to select
3)
Volume Adjustment
a)
While music is playing, press “V+” or
“V-”button on the HKT 450 to increase or
decrease the volume.
Line out
a)
The Line out is a 2.5mm diameter jack
for connecting a mono earphone
b)
When an earphone is plugged into the
line-out jack, the speaker audio will transfer
from the HKT 450 to the earphone
Restore Factory Default Setting
a)
Make sure the HKT 450 is in Standby
Mode
b)
Press and hold both “V+”and
“V-”buttons for 10 seconds until the Red LED
and Blue LED alternate quickly
c)
Press and hold both “V+”and
“V-”buttons again for 3 seconds until an
audible tone is heard twice from the
Speakerphone
d)
The HKT 450 will power off automati-
cally.
e)
Now the device resets back to the factory
default setting (all previous stored different
device pairing records will be deleted).
the device used to hear the music when the
music player is started.
(Always refer to the User Guide of your
mobile phone for details on playing music
through A2DP)
Note:
1)
To answer an incoming call while the
music is playing
If a call comes in while the mobile phone
is playing music through A2DP, the player
will stop the music automatically. The
incoming call ring tone will be heard
through the HKT 450. To answer the
incoming call, short press the MFB
(multi-function-button) on the HKT 450.
After the call ends, the player will resume
playing the music automatically.
2)
Play or Pause Music
a)
While music is playing, short press the
“Mode Button” on the HKT 450 to pause
the music
b)
While in pause mode, short press the
“Mode Button” on the HKT 450 to resume
the music playing
Microphone Mute Mode
a)
During a call, press and hold the
“Mute/Mode” switch on the HKT 450 for 3
seconds until the Red LED switches on…..the
microphone on the device is now muted
b)
While in MIC Mute Mode, hold the
“Mute/Mode” switch on the HKT 450 for 3
seconds until the Red LED switches off…..the
microphone on the device returns to normal
Call Holding
a) During a call, press and hold either
“V+”or “V-” button for 3 seconds to put the
call on hold
Answer 2nd Call during a Call
a)
During a call, when the 2nd call comes
in, press and hold either “V+”or “V-” button
on the HKT 450 for 3 seconds to answer the
2nd call
Call Swap
a)
With two callers on the HKT 450, press
and hold either “V+”or “V-” button for 3
seconds to swap between the two callers.
Note:
Call holding can only be done only if your
mobile phone and its SIM support this
function.
HKT450
Bluetooth Speakerphone
USER GUIDE
Multi-Function-Button
&
Speaker Volume
“V+” & “V-”
Printed in China
