CSR8675 blurtooth 5.0 Wireless Audio Receiver Transmitter Adapter 2-In-1 3.5mm AUX Interface USB
Specification:
bluetooth chip: CSR8675
bluetooth agreement support: RX: A2DP AVRCP TX: A2DP
Transmission distance: >10M (open area)
Battery standard: 600MA
Service time: RX> 18H TX> 22H
Charging time: about 3H
Charging voltage: DC 5V
Input / Output connection mode: SPDIF. 3.5MM stereo audio interface
CODEC: TX: SBC
RX: SBC ACC
Definition of LED indicator:
“RX” Indicator turns on :The device is on RX receiving working mode
“TX” Indicator turns on :The device is on TX transmit working mode
“OPT” Indicator turns on :The device is on SPDIF audio mode
“AUX” Indicator turns on :The device is on AUX audio mode
“Pairing”white light flickers :The device is connected successfully
Connect two bluetooth devices under TX transmit mode
“SBC. AAC.HD” light turns on :The corresponding work under CODEC mode is: SBC/AAC status
“Pairing”white light is on :The device is connected successfully
“Pairing”green light is on :Connect two bluetooth devices under TX transmit mode
Charge:
There is a chargeable battery in the product for the standby and use for a long time.During the regular use,
red light flickers, which means the product is on thelow-power alarm mode and needs to be charged.
(It is suggested that you can charge fully and then use before the first use)
A. Insert one end of Micro USB charge cable to the charging port, connect another end to the standard USB
5V power output port (such as phone chargers,computer USB interface)
B. The charging time is about 3H.
C. When charging, red light is on all the time, it is off when completing charging.
Note:
1. There may be the current interfering noise during charging with the too low poweror the bad charging supply quality.
2. The service life of the battery will be affected if often charging.
3. Please try not to store the product in low power, which may cause that the battery is protected automatically and
can’t supply the power.
Functional Operation:
1. Turn on / off (the interval time for turning on / off shall not be less than 3S.)
When strumming the power switch to ON end, LED light is on, the device turns on.
When strumming the power switch to OFF end, LED light is off, the device turns off.
2. The device enters into the backhaul and match search status automatically
Turn on the device, it enters into the backhaul and match search status automatically.
3. Enter into the matching mode quickly
After the device is on, pressing the key twice can enter into the matching search status quickly.
4. Remove the matching device:
Long-press key for 8S under ON status, all the LED lights turn on at the same time,it is successful to remove the matching device.
5. Automatic selection between AUX / SPDIF mode:
The device audio adopts the automatic selection method, the device is on SPDIF mode by default. When you insert
AUX interface audio cable, it will be selected to AUX automatically, you can choose AUX or SPDIF mode according to your
preferences. The device inserts SPDIF IN port and achieves TX (transmit)function under SPDIF mode. And it needs to
insert SPDIF OUT port to achieve RX (receiving)function.
(Note: Please don’t insert the audio cable in AUX interface when using under SPDIF audio mode. After inserting the audio
cable in AUX port, the device will be selected to AUX audio mode.)
Key Function:
Under RX mode:
Click previous / next track key, increase / reduce volume by the long press.
Click the key to play / pause music
Click the key to backhaul the device
Double click the key to enter into the matching status quickly
Under TX mode:
Click MUTE or recovery
Click the key to backhaul the device
Double click the key to enter into the matching statusquickly
Automatic OFF function:
The device enters into the sleep mode after 6 minutes under the unconnected status, you need to turn on again to wake it up.
RX receiving mode:
Under the receiving mode, this product can transfer the music from the phone,computer and PAD with bluetooth to the
acoustic device with AUX / SPDIF audio input interface by the bluetooth receiving function of the product.
Operation steps:
A. Place the RX / TX selection switch on the side of the device to RX
end, turn on the power switch to strum to ON end. The device turns
on, “RX”Indicator turns on.
B. Double click key, the device enters into the match search status quickly (“pairing” light flickers quickly).
C. Please insert the optical cable in SPDIF OUT RX interface, “OPT” light on the device turns on, the other end
of the optical cable is inserted into the optical input interface of the acoustic device at home.
( Note: Please don’t insert the audio cable in AUX interface when using under SPDIF audio mode. After inserting the
audio cable in AUX port, the device will be selected to AUX audio mode)
If you use AUX audio interface, please insert 3.5MM audio connecting line to AUX interface on the device,
“AUX” light turns on on the device, insert the other end of the audio cable in the audio input interface of the
acoustic device at home.
D. Open the phone bluetooth function, click to search the bluetooth device, select and click to connect the device
name “BT-B20” in the bluetooth list.
E. After connecting, “pairing” light on the device is on, you can appreciate the music on this device. ( Note: When
transferring and playing the music after connecting, CODEC working indicator on the device turns on correspondingly: SBC. AAC)
TX transmit mode:
This product can be used with TV under the transmit mode, which transmits sounds to the bluetooth device
(bluetooth earphone)or bluetooth acoustics wirelessly.
Operation steps:
A. Turn on the bluetooth acoustics or bluetooth earphones which wait for connecting and put it in the matching status.
B. Place the RX / TX selection switch on the side of the emitter device to TX end, turn on the power switch of the
emitter to strum to ON end. The device turns on, “TX” Indicator turns on.
C. Double click key, the device enters into the match search status quickly (“pairing” light flickers quickly) .
D. Please insert the optical cable in SPDIF IN TX interface of the emitter device, “OPT” light on the device turns on,
the other end of the optical Ncable is inserted into the output interface of TV at home.
(Note: Please don’t insert the audio cable in AUX interface when using under SPDIF audio mode. After inserting the
audio cable in AUX port, the device will be selected to AUX audio mode)
If you use AUX audio interface, please insert 3.5MM audio connecting line to AUX interface on the device, ”AUX” light
turns on on the device, insert the other end of the audio cable in the audio output interface of TV at home.
E.“Pairing” light flickers quickly on the device, search the bluetooth device (bluetooth earphone or acoustics).
Please place this product and the bluetooth device (like bluetooth earphones) within 1M for connection.
F. After matching and connecting successfully, “pairing” light is on, you can hear the sound through your bluetooth
acoustics or earphones. ( Note:When transferring and playing the music after connecting, CODEC working indicator on the
device turns on correspondingly: SBC
Note: ① Because there are difference in the schemes and agreements, the search and connection time of different
bluetooth device(like bluetooth earphone) will be different.
② “Pairing” light flickers quickly under TX mode, that is the status of searching the bluetooth device (bluetooth earphone
or acoustics).
③ It is suggested to put the bluetooth acoustics or bluetooth earphones in the matching status, then turn on the device,
it can improve the connection speed.
④ When using this device, please don’t place it on the metal objects, at the same time place it in front of TV without any shelters.
⑤When playing by using the high bit rate audio source input (like blue ray DVD audio source), it may cause the
sound interrupted / jammed,this product supports 24bit/48KHZ transmission.
“One drives two function” of TX transmit mode:
A. Refer to the above connecting steps, connect to A bluetooth device (bluetooth earphone or acoustics) .
B. After A bluetooth device (bluetooth earphone or acoustics) connects successfully, please turn on B bluetooth device
(bluetooth earphone or acoustics) and put it in the matching and connecting status.
C. Double click key , the device enters into the match and search status quickly (“pairing” light flickers quickly),
start to search B bluetooth device (bluetooth earphone or acoustics) , and connect it automatically after searching B
bluetooth device.
D.After connecting successfully, “Pairing”green light on the device is on,
A and B bluetooth devices (bluetooth earphone or acoustics)make sounds at the same time.
Note: ① If B bluetooth device can’t be searched for connection, youcan double click key on the device, try to match and search
for connection again.
② If A and B bluetooth devices (bluetooth earphone or acoustics) can’t be connected at the same time, or the sound is
irregular after connecting the bluetooth device (like no sound, jammed), you can try to turn off the emitter device and turn on again.
③ Because there are differences in the schemes and agreements used for different bluetooth devices, it may cause the
failure or the phenomenon of no sound when using by connecting “One drives two” under the transmit mode, you can try to
disconnect one bluetooth device.
Fault diagnosis:
When meeting the following problems, you can try to solve by the following methods, but if there are still problems after
handling, Please connect with the dealer,do not open the machine and repair by yourself to avoid the unnecessary troubles.
If the adapter can’t work normally?
1)Please insert the charger and connect, inspect if the battery has power or not.
2)Please turn on after the power supply is off, inspect if it can wake up for workor not.
3)If you can’t search this device on the phone, please inspect if the device is on the matching and connecting status
under RX mode, whether “RX” indicator turns on or not, you can refer to the instruction in the above functional operation
under RX mode.
4) If the bluetooth device (bluetooth earphone or acoustics) can’t be searched under TX mode, please inspect if the device
is under TX mode for searching the bluetooth device, whether “TX” indicator turns on or not, you can refer to the instruction
of connecting the bluetooth device in the above functional operation under TX mode.
5) The device working mode and status can be judged according to the LED working indicator in front of the device.
6) If there is no sound after connecting SPDIF, please inspect if there is the audio cable inserted in AUX audio port on
the device or not.
7) If the sound is interrupted or jammed during the use, you can try to turn off this emitter and turn on again. Please don’t
place it on the metal objects, place it in front of TV without any shelters. When playing by using the high bit rate audio
source input (like blue ray DVD audio source), it may cause the sound interrupted / jammed, this product supports
24bit/48KHZ transmission.
8) Because the chip scheme and the transmission agreement of all kinds of the bluetooth receiver are different, there
may exist the failure of matching, we are striving for optimizing it.
Package list:
Optical bluetooth transceiver integrated machine *1
Product instruction *1
Optical cable *1
USB charging cable *1
3.5MM audio cable *1
RCA audio connecting line *1
Availability: 
Shipping: Free Airmail 
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