Volume upBluetooth
Pairing
Volume down
Optical /
AUX
Select
3.5 mm
cable
RCA-Y
cable
Optical
(SPDIF)
cable OROR
Package Contents Product Highlights Product Application
Operation Operation
WARNING!!! This equipment has been tested and found to comply with the limits of 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 instruction, 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 whatever measures may be
required to correct the interference.
Radio and TV Interference Statement
Aluratek warrants this product against defect in material or workmanship for 1 YEAR
from the date of purchase.
This warranty becomes invalid if the factory-supplied serial number or "warranty void" sticker has
been removed or altered on the product.
This warranty does not cover:
A) Cosmetic damage or damage due to acts of God
B) Accident, misuse, abuse, negligence or modification of any part of the product.
C) Damage due to improper operation or maintenance, connection to improper equipment,
or attempted repair by anyone other than Aluratek.
D) Products sold AS IS or WITH FAULTS.
IN NO EVENT SHALL ALURATEK'S LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT
FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
RESULTING FROM THE USE OF THE PRODUCT, IT'S ACCOMPANYING SOFTWARE, OR
IT'S DOCUMENTATION.
Aluratek makes no warranty or representation, expressed, implied, or statutory, with respect to it's
products, contents or use of this documentation and all accompanying software, and specifically
disclaims it's quality, performance, merchantability, or fitness for any particular purpose. Aluratek
reserves the right to revise or update it's product, software or documentation without obligation to
notify any individual or entity.
Warranty
qsg Q10525 Copyright © 2019 Aluratek, Inc. All Rights Reserved.
aluratek.com
model ABCD54F
Quick Start Guide
Universal Bluetooth Audio Receiver & Transmitter w/ Bluetooth 5
Technical Support
If you need further assistance, please contact the Aluratek support department for
troubleshooting prior to returning this device.
Web: www.aluratek.com/helpdesk
Local (Irvine, CA): 714-586-8730
Toll free: 1-866-580-1978
Control Functions LED Indicators Pairing in Transmitter Mode (TX)
Please make sure the device supports A2DP profile. The pairing procedure will vary
depending on the actual device. Please refer to the user guide of your device for detailed
instruction. The general pairing procedures are as follows:
1. Make sure ABCD54F is switched to TX
2. Connect the USB DC input to ABCD54F
3. ABCD54F will enter pairing mode automatically with TX LED flashing rapidly (Quick
press the pairing button twice if it is not in pairing mode)
4. Activate your device’s Bluetooth function and set your device to search for Bluetooth
device.
5. Please make sure ABCD54F and the device are next to each other and they will pair
automatically
6. After connecting successfully, both “TX” and “A” LED lights will illuminate steady blue.
Your order has been carefully packaged and inspected. The following accessories should
be included in your package. Please inspect the contents of the package to ensure that
you have received all items and that nothing has been damaged. If you discover a problem,
please contact us immediately for assistance.
Operation
Operation
Pair with two devices at the same time in TX mode
In TX mode, ABCD54F is able to pair/stream to two Bluetooth stereo headphones /
speakers at the same time.
1. Follow the previous instructions in the “Pairing in Transmitter Mode” section to pair
ABCD54F with your first device.
2. Press the pairing button twice on ABCD54F to enter pairing mode
3. Power on your second device and enable Bluetooth pairing mode
4. Once connected, both “A” and “B” LED lights will illuminate steady blue
Pairing in Receiver Mode (RX)
Please make sure the device supports A2DP profile. The pairing procedure will vary
depending on the actual device. Please refer to the user guide of your device for detailed
instruction. The general pairing procedures are as follows:
1. Make sure ABCD54F is switched to RX
2. Connect the USB DC input to ABCD54F
3. ABCD54F will enter pairing mode automatically with RX LED flashing rapidly (Quick
press the pairing button twice if it is not in pairing mode)
4. Activate your device’s Bluetooth function and set your device to search for Bluetooth
device. Select ABCD54F when it is found
5. After connecting successfully, both “RX” and “A” LED lights will illuminate steady blue
Operation Operation
Bypass Mode Setup
This mode can be used if you just want to use the ABCD54F as a converter without
using the Bluetooth function. Slide the switch to bypass mode and connect the power
source to ABCD54F to enable the following functions: aux to aux, opt to opt etc...
To enable aptX-HD For Supported Device
While ABCD54F is on, press and hold the pairing button for 7 seconds to turn on/off
aptX-HD mode
To Clear Pairing Records
For TX mode, while ABCD54F is on, press and hold the “+” button for approximately 7
seconds until both TX and RX LED lights flash 2 times simultaneously.
TX / Bypass / RX
Mode Switch
RX TX
USB Power Cable 3.5mm Cable RCA-Y Cable Digital Optical Cable
Optical
(SPDIF)
Ports*
Micro USB DC IN Port
AUX (3.5mm) Ports
*In SPDIF mode, connect devices through SPDIF IN
for TX mode and SPDIF OUT for RX mode
Bluetooth headphones, earbuds,
and speakers
Bluetooth enabled smartphones,
tablets, desktops and laptops
Stereos and speaker docks
with an AUX IN (3.5 mm)
or RCA IN or Optical (SPDIF) IN
TVs, computers and MP3 players
with an AUX OUT (3.5 mm)
or RCA OUT or Optical (SPDIF) OUT
Use ABCD54F
as a Receiver
Use ABCD54F
as a Transmitter
3.5 mm
cable
RCA-Y
cable
Optical
(SPDIF)
cable OROR
UP TO
100’
Status
LED Indicator
Pairing Mode
Standby / Reconnect Mode
Connected with one device
Connected with two devices
Connected CODEC mode
LED “HD” shows blue
LED “HD” shows blue
LED “HD” shows blue
TX LED flashes rapidly (TX Mode)
RX LED flashes rapidly (RX Mode)
TX LED flashes once every 3 seconds (TX Mode)
RX LED flashes once every 3 seconds (RX Mode)
LED “A” shows blue
LED “A” and LED “B” shows blue
Button
Function
Pairing
Enable pairing mode
Press the pairing button twice to enter the pairing mode
Play / Pause
(in RX mode only)
Press the pairing button to play / pause during music playback
Volume + Volume + (in RX mode only)
Turn aptX-HD ON / OFF
Next song (in RX mode only
Volume - (in RX mode only)
Short press the volume+ button during music playback
Long press the volume+ button to skip to the next song
Short press volume- button during music playback
Long press volume - button to skip to the previous song
Volume -
Previous song
(in RX mode only)
Tx /Rx mode
selection
Mode switch Short press mode button to switch between OPT and AUX
Switch the button to Tx side for transmit mode / Rx side for receive mode / BYPASS
(middle) for pass through mode
Press and hold the pairing button for 7 seconds to turn
ON / OFF aptX-HD when powered on (only when you
paired with a compatible device)
LED “LL” shows blue
LED “aptX” shows blue
Above 3 LED stays off
aptX™ low latency
aptX™ HD
aptX™
SBC
