Bluetooth Transmitter & Receiver KH34
User Manual
Contents:
1. Product Overview-------------------------------------------------------------- 2
2. Basic Operation --------------------------------------------------------------- 3
3. How to use as a Bluetooth Transmitter (TX)---------------------------------- 4
4. How to use as a Bluetooth Receiver (RX)------------------------------------ 7
5. Charging------------------------------------------------------------------------10
6. LED Indicator ------------------------------------------------------------------11
7. Product Specification-----------------------------------------------------------12
8. Attention and Q & A------------------------------------------------------------13
1.Product Overview
CODEC Indicator
Connected Device Indicator
Working Status Switch
Power button
3.5mm audio port
SPDIF input port
SPDIF output port
Type-C charge port
Power indicator/
Low battery indicator
Package Contents:
A. KH-34 Bluetooth Transmitter
& Receiver *1
B. 3.5mm Audio Cable *1
C. Type-C USB Charging Cable *1
D. User Manual *1
E. Fiber Optic Cable *1
2. Basic Operation
Button
Function
Operation
MFB (Multi Function
Button)
Power on
In off status, long press MFB 3 seconds to power on.
Power off
In on status, long press MFB 3 seconds to power off.
Enter paring
mode
In on status, double press MFB to enter pairing mode.
*Not work in Multi Point Connection.
Play / Pause
In RX play music status, short press MFB to pause / play
the music.
*Not work in TX.
TX/RX mode selection
In off status, switch the button to TX side for TX mode, or switch the
button to RX side for RX mode and power on.
*The paired records of the last mode will be delete when switch to another mode.
*Please turn off the units after 3 seconds then switch to another function mode.
SPDIF/AUX mode
Insert the 3.5 mm audio cable or RCA cable to enter into the AUX mode,
insert the fiber optic cable to enter into the SPDIF mode.
3. How to use as a Bluetooth Transmitter (TX)
1. In off status, switch to TX side.
2. Long press MFB 3 seconds to power on , and double
press MFB button to enter into pairing mode with “A”
LED fast flash. Turn on the Bluetooth function of
headphone or speaker to enter into pairing mode.
3. Place the KH-34 and the device close and wait
for 5-30 seconds, after successful connection, KH-
34 will turn to solid TX LED, solid A LED, and solid
CODEC LED
4. Insert the audio cable, RCA cable
or fiber optic cable to select the
connection mode.
3.1 Bluetooth Pairing and Connection
A．Off mode, switch the button to TX side and long press MFB 3 seconds to power on.
B．Double press MFB button to enter into pairing mode with pairing indicator “A” LED
fast flash if not automatically enter it after power on.
C．Turn on the Bluetooth function of your device (bluetooth headphone, speaker or
receiver etc.) to pairing mode with Red & Blue LED flash alternately or Blue LED flash.
D．Place the KH-34 and the device close and wait for 5-30 seconds, after successful
connection, KH-34 will turn to solid TX LED, solid A LED, and solid CODEC LED, please refer
to Point 6.
E．Connect KH34 and your phone with 3.5 mm audio cable, and could play music from
your phone to the headphone or speaker.
Notes:
CODEC indicator flash in different way depend on different CODEC (of connected device)
after connected, refer to point 6 LED indicator.
3.2 Multi Point Connection
A．Follow 3.1 to connect with the first device, double press MFB button to enter into
pairing mode again with pairing indicator “B” LED fast flash.
B．Turn on the Bluetooth function of the second device (Bluetooth headphone,
speaker or receiver etc) to enter into pairing mode, place them close and waif for 5-
30 seconds. KH34 pairing indicator“A””B” solid LED after connected with two
devices.
Notes：
1. Pls turn off KH34 and turn on again, and try to reconnect or repair with two devices, when it
could not connected with two devices at the first time.
2. Multi point connections could compatible with most Bluetooth devices of market, but there are
some devices maybe have some problem when connect with it.
3. Single connection priority support aptX™ LL (connected device also need to support aptX™ LL).
Two connections priority support aptX™ LL, aptX™ or SBC also will be according to the device
setting of the priority support.
4. When during multi point connections, connect the second device but not disconnect the first
device, when the second device is connected successfully will with temporarily bad working, pls
wait for 5 to 20 seconds for normal working.
3.3 TV Connection
Connect KH34 and the TV with 3.5mm audio cable，RCA cable or fiber optic cable,
and Bluetooth connect KH34 with devices ( Bluetooth headphone or speaker ), and
could transmit the audio from TV to the devices .
Notes：
1. Pls test the TV with wired headphone by selecting 3.5mm output or RCA sound device insert
into RCA audio port to check the TV's audio settings to make sure the devices connect in the
right way and play audio from the TV.
2. If bluetooth headphone can not hear sound from TV, please check the TV audio setting,
normally can output sound one of them or all: fiber optic, 3.5mm, tv speaker.
3. Pls connect the TV and SPDIF IN port with fiber optic cable when select the Toslink connection
mode.
4. How to use as a Bluetooth Receiver (RX)
1. In off status, switch to RX side.
2. Long press MFB 3 seconds to power on , and double
press MFB button to enter into pairing mode with “A”
LED fast flash. Turn on the Bluetooth function of
headphone or speaker to enter into pairing mode.
3. Turn on Bluetooth function of Phone, search
and click to connect “TaoTronics TT-ba09
Pro” on Bluetooth device lists. “A”solid LED
after connect.
3. Insert the 3.5mm audio cable
or fiber optic cable to select the
AUX or SPDIF connection mode.
4.1 Bluetooth Pairing and Connection
A．Off mode, switch the button to RX side and long press MFB 3 seconds to power
on.
B．Double press MFB button to enter into pairing mode with Red & Blue LED flash
alternately.
C. Turn on Bluetooth function of Phone, search and click to connect “TaoTronics TT-
ba09 Pro” on Bluetooth device lists.
D. LED turns to solid Blue after connected, connect KH34 and headphone or speaker
with 3.5mm audio cable, play music from phone to the headphone or speaker.
Notes:
CODEC indicator LED flash in different way depend on different CODEC after
connected and playing music, refer to point 6 LED indicator.
4.2 Multi Point Connection
A．Follow 4.1 to connected with first phone (PC, laptop).
B. Double press KH34 MFB button to enter into pairing mode again with pairing
indicator “B” LED fast flash.
C. Turn on Bluetooth function of the second phone, search and click to connect KH34
on phone Bluetooth lists. Multi point connections with solid green LED.
Notes：
(1) Only could play music from one phone when with two connections. Need to stop the
first one’s music then to play the other one’s music.
(2)In two connections, the CODEC indicator will flash according to the connected phone.
4.3 Speaker Connection
Connect KH34 and Speaker with 3.5 mm audio cable, and Bluetooth connect with
phone (PC, laptop), play music from your phone to speaker.
Notes：
1.Pls test the speaker with 3.5 mm audio cable (connect phone) to see if workable, if could not play
when connect with KH34.
2. Pls insert to SPDIF OUT port for Toslink connection.
5. Charging
Pls charging KH34 when low battery with Red LED flash. LED turn off when full
charged (about 2 hours ).
Connection for charge
Connect KH34 and power supply (charger , car charger , computer USB etc )with Micro
USB cable.
Charging with Type-C USB cable / Charging with PC
Notes:
1. Pls charge the KH34 at least once every 2 months if without use.
2. Pls press “MFB” and connect with power supply to reset the item , when it dead during use.
6. LED Indicator
Status
LED Indicator
Power on
Power indicator LED flash twice (TX/RX)
Power off
Power indicator LED flash twice (TX/RX)
Pairing mode
Pairing indicator “A” LED fast flash (TX/RX)
Unconnected standby mode
Pairing indicator “A” LED flash once every 5
second (TX/RX)
Reconnect mode
Pairing indicator “A” LED flash once every
second (TX)
Pairing indicator “A” LED flash once every 5
second (RX)
Connected standby mode
Pairing indicator “A” solid LED (RX)
Connected working mode (CODEC)
aptX™ low latency
LL indicator solid LED
aptX™
aptX™ indicator solid LED
SBC
SBC indicator solid LED
Low battery
Low battery indicator solid LED
Charging
Power indicator solid LED
Full charged
Power indicator LED turn off
*Pairing indicator “A” turn to solid LED after connected in TX/RX, CODEC
indicator will turn on while working.
There is no connected standby mode in TX, it is working status once
connected, so pairing indicator “A”and CODEC indicator will turn on.
7. Product Specification
Bluetooth Version
V5.0
Chipset Solution
CSR 8670
Operation Range
Up to 10 meters
Bluetooth Profile
TX/RX: A2DP, AVRCP
CODEC
RX: aptX™ low latency, aptX™, SBC
TX: aptX™ low latency, aptX™, SBC
Battery Capacity
620mAh/3.7V
Charging Time
About 2 hours
Standby Time
About 100 hours
Working Time
AUX
RX
About 24 hours
TX
About 24 hours
SPDIF
RX
About 28 hours
TX
About 28 hours
Operating Temperature
-10---50℃
Net Weight
About 44 g
Size
60.6*60.6*19.3mm
Notes:
1. Working time will be different depend on different working environment and CODEC.
2. Standby time will be same as working time on TX mode, as it will be working once connected.
3. CODEC code depend on the connected devices and follow the turns as mention.
8. Attention and Q & A
Q．Power off automatically?
A: Without connect with any devices for more than 10 minutes the item will power off
automatically in RX mode, except in TX mode.
Q．How to reconnect?
A: KH34 will reconnect with paired devices when power on. If not , pls follow the 3.1
or 4.1 to pair & connect again.
Q . How to delete the paired records?
A: Switch to another mode （TX or RX）and power on, will delete the paired records
of the last mode. (Pls switch to another mode after 3 seconds from power off in last
mode.)
Q . Password for connect?
A: Pls enter “0000” (four zero), “8888” (four eight), ”1111” (four one), or
“1234” (one, two, three, four) for some devices which need password to connect .
Q. Could not power on or dead when connect?
A: Press MFB and connect with power supply to reset the item, and repower for use.
Q. Charging power supply?
A: Charging power supply: 5V, ≥500 mA. (Charger, car charger , computer USB etc.)
FCC STATEMENT :
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.
Warning: Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
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
more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
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