www.avsl.com 421.759UK
BTHF1: Hands-free Car Kit
with Twin USB Charger
Item ref: 421.759UK
User Manual
A compact, hands-free car kit to wirelessly transmit phone calls and music from your Bluetooth device to your vehicle’s FM radio.
Features include a clear LED display, inbuilt media player and twin USB ports to ensure you’re fully charged on the go.
• Wirelessly transmits phone calls and music to your vehicle's FM radio.
• Compact and stylish design with bright LED display.
• Two USB ports with a combined max output of 3.4A (2.4A and 1.0A).
• Bluetooth 4.2 connectivity provides clear audio and low power consumption.
• Inbuilt media player streams MP3/WMA content directly from USB flash drives.
Technical Specifications
Bluetooth version
v4.2
Input voltage
12-24V DC
Output voltage
5V DC
USB output current
3.4A (2.4A and 1.0A)
FM frequency range
87.5~108.0MHz
Input connections
Bluetooth, 3.5mm AUX
Dimensions
37 x 37 x 70mm
Weight
26g
Operation guide
Pairing with your vehicle’s FM radio:
Plug the transmitter into your vehicle’s cigarette lighter socket
and it will automatically power on. Turn on the stereo system
and switch to FM radio mode. Manually scan through the
frequency to find an available channel, trying to make it as far
away from existing channels as possible to avoid interference.
Next, long press the call answer button to make the
channel frequency on the LED display flash, then navigate to
the same frequency as your car stereo using the frequency up
and down buttons on the unit.
Connecting to your smartphone using Bluetooth:
Enter your smartphone’s Bluetooth device list and search for
the pairing name “AV:Link-BTHF1” and select to pair, if
asked for a pairing code enter “0000”. Once paired you will
hear a confirmation tone and you are now able to make and
receive hands-free telephone calls using the microphone in the
transmitter and your car speakers for the incoming audio. To
answer a phone call, press the call answer button in the
centre of the unit once, to reject the call press it twice. To
redial the last number in your phone’s memory, press the call
answer button twice in no call status mode. You can also listen
to audio content on your smartphone using the inbuilt MP3
player. Use the track control buttons on top of the unit
to play/pause, move up and down the tracks or
control the master volume by long pressing accordingly.
Listening to music through the USB port:
The transmitter also has an inbuilt media player capable of playing MP3/WMA files from a USB drive inserted into the USB disk port.
Ensure the inserted media is no larger than 64GB in size and is formatted in FAT32 status, then use the track control buttons on the
top of the unit to play/pause, move up and down the tracks or control the master volume by long pressing accordingly.
www.avsl.com 421.759UK
Using the AUX in (3.5mm) port:
Insert a 3.5mm audio cable into the port on the unit and connect to any device that transmits audio. You can now listen to the audio
content through your car stereo providing the volume on the connected device is increased to an audible level. Note: The track
control buttons on the transmitter won’t work using the AUX mode.
Using the charging ports:
The transmitter is fitted with 2 USB charging ports which can both be used to charge devices at the same time. Port 1 is multi-
purpose and is for USB Disk function or charging devices max. 5V 1.0A. Port 2 is purely for charging and has a max. output of
5V 2.1A.
Quick Guide:
In the Box:
1pc Bluetooth FM transmitter
1pc User manual
FAQ
Q) Why won’t my Bluetooth device pair with the transmitter. A) Check that your device is in Bluetooth mode and set to discoverable.
If after a few minutes you are still unsuccessful, turn off both devices and try again.
Q) Why is the FM reception poor quality or has interference? A) Try moving to a different frequency and ensure there are no stations
in the near vicinity.
Q) Why won’t the content on my USB drive play? A) Ensure the drive is no larger than 64GB, formatted in FAT32 status and the music
files are MP3 or WMA format.
Safety Disclaimer
Do not attempt to service this product yourself as opening or removing covers may result in fire, electric shock or equipment damage and
will also invalidate the warranty. This product is only designed for indoor use and must be kept away from water and high humidity along
with high temperatures and direct sunlight.
This product is classed as Electrical or Electronic equipment and should not be disposed with other household or commercial waste at the end of its
useful life. The goods must be disposed of according to your local council guidelines.
Errors and omissions excepted.
Copyright© 2019. AVSL Group Ltd.
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